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What kind of competition often leads to extinction because the species that is less well adapted gets fewer of the resources that both species need?
|
[
"intraspecific competition",
"parasitism",
"interspecific competition",
"mutualism"
] |
C
|
Interspecific competition often leads to extinction. The species that is less well adapted may get fewer of the resources that both species need. As a result, members of that species are less likely to survive, and the species may go extinct.
|
SCiQ_train
|
A father said to his son, "I was as old as you are at present at the time of your birth." If the father's age is 38 years now, the son's age five years back was
|
[
"38 years",
"14 years.",
"None",
"33 years"
] |
B
|
Solution
Let the son's present age be x years.
Then (38-x)=x
2x=38
x=19.
Therefore son's age 5 years back =(19-5) years
= 14 years.
Answer A
|
AquaRat_train
|
Generic Name: ASPIRIN Pronunciation: ['aesp@rin] Why it is prescribed : 1. Aspirin relieves mild to moderate pain. 2. It reduces fever, redness, and swelling. 3. It prevents blood from clotting . When it is to be taken: 1. Aspirin is often taken without a prescription. 2. Follow the instructions on the label and package. 3. If your doctor prescribes aspirin for you, you will receive specific instructions for how often you should take it. 4. Keep in touch with your doctor. How it should be taken: 1. Aspirin comes in the form of suppositories , capsules, and regular, coated, extended-release, and chewable tablets. 2. Regular, coated, and extended-release aspirin tablets and capsules should be swallowed with a full glass of water or milk after meals to avoid stomach upset. 3. Chewable aspirin tablets may be chewed, crushed, dissolved in a liquid, or swallowed whole; a full glass of water, milk, or fruit juice should be drunk immediately after taking these tablets. Special Instruction: 1. Children should not take aspirin for fevers associated with flu or chickenpox because such use has been linked with a serious illness known as Reye's syndrome. 2. Adults should not take aspirin for pain for more than 10 days (five days for children) without consulting a doctor. 3. Aspirin should not be taken by adults or children for high fever, fever lasting longer than three days without a doctor's supervision . 4. Do not give more than five doses to a child in a 24-hour period unless directed to do so by a doctor. 5. If you miss a dose, take the missed dose as soon as you remember it and _ the prescribed schedule. Side Effects: 1. Although side effects from aspirin are not common, they can occur. 2. Nausea, vomiting, stomach pain, indigestion and heartburn are common. Take aspirin after meals, with a full glass of water or milk. If these effects continue, contact your doctor. 3. Ringing in the ears, bloody or black stools , difficulty breathing, dizziness, mental confusion and sleepiness are rare. Stop taking the drug and contact your doctor. Other Precautions: 1. If you are pregnant or breast-feeding women, inform your doctor before taking aspirin. 2. Do not take aspirin if you are within three months of delivery. 3. Do not take aspirin if you are allergic to it. 4. If you have diabetes , regular use of eight or more regular strength aspirin tablets a day may affect test result. 5. If you are taking large doses of aspirin on a long-term basis, avoid having alcoholic drinks because alcohol can increase stomach problems. 6. To prevent an overdose of aspirin, read the labels before taking other pain relievers and cold products to be sure that they do not contain aspirin. Storage Conditions: 1. Store aspirin in a cool place or in a refrigerator. 2. Throw away aspirin that smells strongly of vinegar. 3. Keep this aspirin out of the reach of children. Which of the following about Aspirin is correct?
|
[
"It only comes in the form of regular tablets.",
"It should not be taken for more than 5 days for children.",
"It can be used to reduce fever and pain and prevent blood clotting.",
"It causes ringing in the ears or difficulty breathing after being taken"
] |
C
|
MMLU_train
|
|
Can dolphins talk? Maybe they can't talk with words, but they talk with sounds. They show their feelings with sounds. Dolphins travel in a group. We call a group of fish a "school". They don't study, but they travel together. Dolphins talk to the other dolphins in the school. They give information. They tell when they are happy or sad or afraid. They say "welcome"when a dolphin comes back to the school. They talk when they play. They make a few sounds above water. They make many more sounds under water. People cannot hear these sounds because they are very, very high. Scientists make tapes of the sounds and study them. Sometimes people catch a dolphin for a large aquarium . People can watch the dolphins in a show. Dolphins don't like to be away from their school in an aquarium. They are sad and lonely . Dolphins There are many stories about dolphins. They help people. Sometimes they save somebody's life. Dolphin meat is good, but people don't like to kill them. They say that dolphins bring good luck. Many people believe this. Which one is true according to the passage?
|
[
"Dolphins swim together in a school because they want to study",
"They don't study, but they travel in a group",
"Dolphins like to be away from their school on an island.",
"Dolphins like to kill people"
] |
B
|
MMLU_train
|
|
In a warm room, it is likely that the source of heat is
|
[
"a series of metal pipes along a wall",
"a small ceiling fan",
"a stove which is turned off",
"a pile of boxes"
] |
A
|
MMLU_train
|
|
Mnrk Zuckerberg, born on May 14. 1984, is an American computer programmer and businessman. As a Harvard student. He created the online social website Facebook, a site popular among students worldwide, with fellow computer science major students and his roommates Dustin Moskovitz and Chris Hughes. He serves as Facebook's CEO. He has been the subject of argument for the origins of his business and his wealth. Time Magazine added Zuckerherg as one of The World's Most Influential people 2008. Zuckerberg grew up in prefix = st1 /Dobbs Ferry,New York. Early on. Zuckerlrg enjoyed making computer programs, especially communication tools and games. He started programming when he was in middle school. While attending Phillips Exeter Academy in high school, he built a program to help the workers in his dad's office communicate and a version of the game Risk. He also built a music player named Synapse that can learn the user's listening habits. Microsoft and AOL tried to purchase Synapse and employ Zuckerberg, but instead he decided to attend HarvardUniversity. Zuckerberg started Facebook from his Harvard dorm room on February 4, 2004. it quickly became a success at Harvard and more than two-thirds of the school's studetts signed up in the first two weeks. It started off as just a "Havard-Thing," until Zuckerberg then decided to spread Facebook to other schools and enlisted the help of roommate Dustin Moskovitz. They first spread it to Stanford, Dartmouth, Columbia, Cornell and Yale, and then to other schools with social contacts with Harvard. By the beginning of the summer, Zuckerberg and Moskovitz had made Facebook available at almost forty-five schools and hundreds of thousands of people were using it. Which word can best describe Zuckerberg?
|
[
"Modest.",
"Creative.",
"Outgoing.",
"Sensitive."
] |
B
|
MMLU_train
|
|
Our guide was excellent! He walked us through all the local villages and took extra time at the end to enjoy a local dinner. He stayed with us longer than he was obliged to and made this a fantastic experience. Tour _ Travel is all about the street food these days, and why not? It's fresh, fast, cheap and a great way to crack into the local scene. Join this Hanoi tour to source the best street eats from markets, food carts, street cafes and other hard-to-find-but-totally-worth-the-effort secret spots. Highlights Sample delicious Vietnamese cuisine just like the locals do -- on the street Stroll through hidden alleyways and bustling markets of Hanoi's charming old quarter Learn more about Hanoi's unique food culture Try local specialties with influences from French and Chinese cuisine Take in a spectacular night view of Hoan Kiem lake from a secret cafe Schedule details Duration: 2.5 hours Meeting point: Sacombank ATM Machine - No. 1 Dong Xuan street (front entrance of Dong Xuan Market, Corner of Dong Xuan St with Cau Dong St) Starting time: 5. 00 PM Ending point: Cafe Pho Co - 11 Hang Gai St, Hoan Kiem We can infer from the passage that the ending time of the tour is _ .
|
[
"5. 00 PM",
"5. 30 PM",
"7. 05 PM",
"7. 30 PM"
] |
D
|
MMLU_train
|
|
The steropodon may have been an ancestor of which animal?
|
[
"geckos",
"wooly mammoth",
"platypus",
"lioness"
] |
C
|
The first monotremes may have evolved about 150 million years ago. Early monotreme fossils have been found in Australia. An example is a genus called Steropodon , shown in Figure below . It may have been the ancestor of the platypus. Early monotremes retained some of the traits of their therapsid ancestors. For example, they laid eggs and had a cloaca. These traits are still found in modern monotremes.
|
SCiQ_train
|
An increase in the body's cholesterol levels can lead to your arteries filling with what?
|
[
"fat",
"triglycerides",
"marble",
"plaque"
] |
D
|
Ways to prevent atherosclerosis include eating healthy foods, getting plenty of exercise and not smoking. A diet high in saturated fat and cholesterol can raise your body's cholesterol levels, which can lead to increased plaque in your arteries. Cholesterol and saturated fat are found mostly in animal products, such as meat, eggs, milk and other dairy products.
|
SCiQ_train
|
The inventor of the world wide web,Tim BernersLee,has won an important award which comes with a prize bag of one million euros (PS671,000).The "Father of the Web" was named as the first winner of the Millennium Technology Prize by the Finnish Technology Award Foundation.He said he had just been "in the right place at the right time" and did not want his photo taken. In 1991,he came up with a system to organize,link and browse Net pages which revolutionized the Internet.The British scientist was knighted for his pioneering work in 2003. Sir Tim created his program while he was at the particle physics institute,Cern,in Geneva.The computer code he came up with let scientists easily share research findings across a computer network.In the early 1990s,it was called the "world wide web," and is still the basis of the web as we know it. The famous man never went on to commercialize his work.Instead he worked on expanding the use of the Net as a channel for free expression and cooperation. "The web is encouraging new types of social networks and opening up new ways for information management and business development.The web has significantly improved many people's ability to obtain information central to their lives,"said Pekka Tarjanne,chairman of the Millennium Technology Prize award committee. Just under 80 people from 22 countries were nominated for the prize for their work in the areas of health,communication,new materials and the environment. The Millennium Technology Prize was set up by the Finnish Technology Award Foundation,an independent body backed by the public and private money which aims to recognize outstanding creations. Sir Tim currently heads up the World Wide Web Consortium (W3C) at the Massachusetts Institute of Technology in Boston,where he is now based as an academic. What would be the best title for the text?
|
[
"The Millennium Technology Prize",
"Tim BernersLee",
"The World Wide Web",
"New Honor for the Web's Inventor"
] |
D
|
MMLU_train
|
|
Corn and wheat are among the favorite foods of
|
[
"humans",
"grizzly bears",
"fish",
"aliens"
] |
A
|
MMLU_train
|
|
Marc wants to make a minimum net profit of 20% on a his headphones, which he bought for $500. If originally, he was selling the pair at 25% gain, what is the largest discount he can allow?
|
[
"5%",
"4%",
"10%",
"0%"
] |
B
|
E
If he bought the headphones at $500, he is currently selling them at (115/100)*500 = $625.
He wants to make a profit of 20%, which means he needs to sell them at (120/100)*500 = $600
The max discount he can allow is thus ((625-600)/625)*100 = 4%
|
AquaRat_train
|
Connective tissues typically have three characteristic components in common: cells, large amounts of amorphous ground substance, and what else?
|
[
"protein fibers",
"antioxidants",
"white blood cells",
"hormones"
] |
A
|
4.3 | Connective Tissue Supports and Protects By the end of this section, you will be able to: • Identify and distinguish between the types of connective tissue: proper, supportive, and fluid • Explain the functions of connective tissues As may be obvious from its name, one of the major functions of connective tissue is to connect tissues and organs. Unlike epithelial tissue, which is composed of cells closely packed with little or no extracellular space in between, connective tissue cells are dispersed in a matrix. The matrix usually includes a large amount of extracellular material produced by the connective tissue cells that are embedded within it. The matrix plays a major role in the functioning of this tissue. The major component of the matrix is a ground substance often crisscrossed by protein fibers. This ground substance is usually a fluid, but it can also be mineralized and solid, as in bones. Connective tissues come in a vast variety of forms, yet they typically have in common three characteristic components: cells, large amounts of amorphous ground substance, and protein fibers. The amount and structure of each component correlates with the function of the tissue, from the rigid ground substance in bones supporting the body to the inclusion of specialized cells; for example, a phagocytic cell that engulfs pathogens and also rids tissue of cellular debris.
|
SCiQ_train
|
An animal needing to be warmer could
|
[
"starve",
"eat more",
"go out",
"diet"
] |
B
|
MMLU_train
|
|
5 men are equal to as many women as are equal to 8 boys. All of them earn Rs.150 only. Men’s wages are?
|
[
"10Rs",
"2Rs",
"6Rs",
"9Rs"
] |
A
|
5M = xW = 8B
5M + xW + 8B ----- 150 Rs.
5M + 5M + 5M ----- 150 Rs.
15M ------ 150 Rs. => 1M = 10Rs.
Answer: E
|
AquaRat_train
|
When lava flows over a large area and cools, it creates a large, flat surface of what type of rock?
|
[
"metamorphic",
"sedimentary",
"tidal",
"igneous"
] |
D
|
A lava plateau is made of a large amount of fluid lava. The lava flows over a large area and cools. This creates a large, flat surface of igneous rock. Lava plateaus may be huge. The Columbia Plateau covers over 161,000 square kilometers (63,000 square miles). It makes up parts of the states of Washington, Oregon, and Idaho.
|
SCiQ_train
|
In Net's hair salon 38% of the customers dye their hair blond, 36% dye their eyebrows blond and 35% straighten their hair. 20% of the customers have none of these three procedures, while 12% take all of these three procedures. What percent of the customers come for exactly 2 of these 3 procedures?
|
[
"15%",
"21%",
"5%",
"12%"
] |
C
|
Let a total of 100 people visit the salon.
Total = 100
Dye hair blonde (A) = 38 % = 38
Dye Eyebrows blonde (B) = 36% = 36
Straighten Hair (C) = 35% = 35
Neither = 20% = 20
All Three = 12% =12
Total = A+B+C - (Sum of Exactly Two group overlaps) - 2*(All three) + Neither
100 = 38+36+35 - (Sum of Exactly Two group overlaps) - 2*12 + 20
(Sum of Exactly Two group overlaps) = 9
%of customers coming for exactly 2 of the 3 procedures = 5%
A
|
AquaRat_train
|
At 15:00 there were 20 students in the computer lab. At 15:03 and every three minutes after that, 3 students entered the lab. If at 15:10 and every ten minutes after that 9 students left the lab, how many students were in the computer lab at 15:44 ?
|
[
"30",
"14",
"25",
"7"
] |
C
|
Initial no of students + 3 * (1 + No of possible 3 minute intervals between 15:03 and 15:44) -
8 *(1 + No of possible 10 minute intervals between 15:10 and 15:44)
20 + 3*14 -8 * 4 = 25
C
|
AquaRat_train
|
My name is Bill. I have a friend called Mike. Today is Mike's birthday. I'm at his birthday party. There are a lot of friends in his house. Some stand beside the table and enjoy the snacks and drinks. There is some food on the table. I like the chocolate and the fruit very much. Mike sits on the sofa and chats with some friends there. He wears a yellow T-shirt and a pair of blue jeans. He looks so cool today. Wow! The cake is really big. There are some candles on it. Mike's friends begin to sing 'Happy Birthday' to Mike. Mike is very happy. He blows out the candles and cuts the cake. Everyone has a good time at the party. There are a lot of friends at _ birthday party.
|
[
"Mike's",
"Bill's",
"my",
"Mike's friend's"
] |
A
|
MMLU_train
|
|
Do you know why different animals or pests have their special colors? Colors in them seem to be mainly used to protect themselves. Some birds like eating locusts , but birds cannot easily catch them. Why? It is because locusts change their colors with the change of the colors of crops. When crops are green, locusts look green. But as the harvest time comes, locusts change into the same brown color as crops have. Some other pests whose colors are different form plants are easily found and eaten by others. So they have to hide themselves for lives and appear only at night. If you study the animals' life, you'll find the main use of colors is to protect themselves. Bears, lions and other animals move quietly through forests. They cannot be easily seen by hunters because their colors are much like the trees. Colors are useful not only on the land, but also in the sea. A kind of fish in the sea can give out a kind of black liquid when the fish face danger. The liquid spreads over quickly, so they cannot be found by their enemies and can quickly swim away. That is why they live safely though they are not strong at all. Bears and lions can keep safe because _ .
|
[
"their colors are much like the trees",
"they move quickly",
"they are very strong",
"they live in forests"
] |
A
|
MMLU_train
|
|
The distinctive appearance of what tissue is due to polysaccharides called chondroitin sulfates?
|
[
"membrane",
"collagen",
"cartilage",
"bone"
] |
C
|
Cartilage The distinctive appearance of cartilage is due to polysaccharides called chondroitin sulfates, which bind with ground substance proteins to form proteoglycans. Embedded within the cartilage matrix are chondrocytes, or cartilage cells, and the space they occupy are called lacunae (singular = lacuna). A layer of dense irregular connective tissue, the perichondrium, encapsulates the cartilage. Cartilaginous tissue is avascular, thus all nutrients need to diffuse through the matrix to reach the chondrocytes. This is a factor contributing to the very slow healing of cartilaginous tissues. The three main types of cartilage tissue are hyaline cartilage, fibrocartilage, and elastic cartilage (Figure 4.16). Hyaline cartilage, the most common type of cartilage in the body, consists of short and dispersed collagen fibers and contains large amounts of proteoglycans. Under the microscope, tissue samples appear clear. The surface of hyaline cartilage is smooth. Both strong and flexible, it is found in the rib cage and nose and covers bones where they meet to form moveable joints. It makes up a template of the embryonic skeleton before bone formation. A plate of hyaline cartilage at the ends of bone allows continued growth until adulthood. Fibrocartilage is tough because it has thick bundles of collagen fibers dispersed through its matrix. The knee and jaw joints and the the intervertebral discs are examples of fibrocartilage. Elastic cartilage contains elastic fibers as well as collagen and proteoglycans. This tissue gives rigid support as well as elasticity. Tug gently at your ear lobes, and notice that the lobes return to their initial shape. The external ear contains elastic cartilage.
|
SCiQ_train
|
Nuclear radiation has a certain mystery, partly because it cannot be detected by human senses. It can't be seen or heard, or touched or tasted, even though it may be all around us. There are other things like that. For example, radio waves are all around but we can't detect them or sense them without a radio receiver. Similarly, we can't sense radioactivity without a radiation detector. But unlike common radio waves, nuclear radiation is not harmless to human beings and other living things. At very high levels, radiation can kill an animal or human being outright by killing masses of cells in important organs. Even the lowest levels can do serious damage. There is no level of radiation that is completely safe. If the radiation does not hit anything important, the damage may not be serious. This is the case when only a few cells are hit, and when they are killed outright. Your body will replace the dead cells with healthy ones. But if the few cells are only damaged, and if they reproduce themselves, you may be in trouble. They reproduce themselves in an unusual way. They can grow into cancer. Sometimes this does not show up for many years. This is another reason for some of the mystery about nuclear radiation. Serious damage can be done without the knowledge of the person at the time that damage has occurred. A person can be irradiated and feel fine, then die of cancer five, ten, or twenty years later as a result. A child can be born weak or easy to get serious illness as a result of radiation absorbed by its grandparents. Which of the following can be best inferred from the passage?
|
[
"The importance of protection from radiation cannot be overemphasized .",
"The mystery about radiation has been solved.",
"Cancer is only caused by radiation.",
"Radiation can hurt those who do know about its danger."
] |
A
|
MMLU_train
|
|
If b equals 10% of a and c equals 20% of b, then which one of the following equals 30% of c?
|
[
"0.6%",
"None of these",
"0%",
"6.0%"
] |
A
|
Explanation :
Given,
b=10% of a
=>(10/100)×a
=>0.1a.
And, c=20% of b
=>(20/100)×b
=>0.2b
=>0.2×0.1a
Now, 30% of c=(30/100)×c.
=>0.3c=(0.3)(0.2)(0.1a)
=>0.006a=0.6%
Answer : B
|
AquaRat_train
|
What orifice in the body is particularly helpful in both digestion and respiration?
|
[
"mouth",
"nose",
"nostril",
"anus"
] |
A
|
SCiQ_train
|
|
Someone in a room without any lights on, but that has mirrors in it, can still have light in that room if
|
[
"lights are turned on in another house",
"a joined room is dark",
"the room is completely dark",
"a joined room is lit"
] |
D
|
MMLU_train
|
|
Which of these animals might eat a steak?
|
[
"Chicken",
"Lion",
"Cow",
"Buffalo"
] |
B
|
MMLU_train
|
|
How does the atomic number change during beta emission?
|
[
"stays the same",
"increases by one",
"decreases by one",
"increases by two"
] |
B
|
Beta (β) decay is a more complicated process. Unlike the α-emission, which simply expels a particle, the β-emission involves the transformation of a neutron in the nucleus to a proton and an electron. The electron is then ejected from the nucleus. In the process, the atomic number increases by one while the atomic weight stays the same. As is the case with α-emissions, β-emissions are often accompanied by γ-radiation.
|
SCiQ_train
|
Joanne was stuck in a traffic jam in central Birmingham at 5:30 and at 6:30 she was expected to be chairing a meeting of the tennis club. At last, the traffic was moving. She swung quickly racing to her house. As she opened the door , she nearly tripped over Sheba. "Hey, Sheba," she said, "I've got no time for you now, but I'll take you out as soon as I get back from tennis club." Then she noticed Sheba seemed to be coughing or choking. Obviously, she could hardly breathe. Immediately, Joanne realized she would have to take her to the vet . When she got there, the vet was just about to close for the day. Seeing the state of Sheba, Dr. Sterne brought her quickly into his office. "Listen, doctor, I'm really in a rush to get to a meeting, can I leave her with you, and go and get changed? I'll be back in ten minutes to pick her up, and then I'll take her on to the meeting with me. Is that OK?" "Sure." said the doctor. Joanne made the quick trip back to her house in a couple of minutes. As she was once more entering the hallway, the phone by the door began to ring. "This is Dr. Sterne," said an anxious voice. "I want you to get out of that house immediately, "said the doctor's voice. "I'm coming round right away, and the police will be there any time now. Wait outside!" At that moment, a police car screeched to a stop outside the house. Two policemen got out and ran into the house. Joanne was by now completely confused and very frightened. Then the doctor arrived. "Where's Sheba? Is she OK?" shouted Joanne. "She's fine, Joanne. I took out the thing which was choking her, and she's OK now. " Just then, the two policemen reappeared from the house, half-carrying a white--faced man, who could hardly walk. There was blood all over him. "My God, " said Joanne, "how did he get in there? And how did you know he was there?" "I think he must be a burglar." said the doctor. "I knew he was there because when I finally removed what was stuck in Sheba's throat:it turned out to be three human fingers." From the passage, we can infer that _ . .
|
[
"Sheba fought against the burglar",
"the police found the burglar had broken in",
"Joanne had planned to take her dog to the meeting",
"the doctor performed a difficult operation on the dog"
] |
A
|
MMLU_train
|
|
Fahad Azad, an engineer in India, invented a robot named DuctBot.The toy-car sized DuctBot measured 23 centimeters in length, 19 centimeters in width and 9 centimeters in height and weighs just two kilograms. The robot is designed to snake through dark, narrow air conditioning ducts and clean them.A pair of LEDs fitted on the robot light up the dirty scenery, so _ can be captured by a camera. In order to control it more easily, Mr. Azad chooses to fix DuctBot on wheels.The robot can clean off lots of dirt, as well as dead pigeons and insects.Keeping indoor air in good quality and monitoring carbon-dioxide levels in buildings with central air conditioning is a challenge.It is important in some places where clean air can mean a difference between life and death, such as hospitals.Dirty air has a bad influence on people's health. EPSCO, a Dubai-based company which specializes in improving indoor air quality, read about Mr. Azad's invention in a national newspaper after he had won an international robotics competition.EPSCO had cleaning equipment, but it needed someone to get into those ducts to do the dirty, dangerous work.Across India, for example, the task still falls to children.They are small enough to go through those ducts. In 2005, Mr. Azad who was still at university decided to do something about it.Six years later his own company, Robosoft Systems, has Bluestar, EPSCO and the Indian Navy, some leading air condition makers, as partners. Mr. Azad and his ten employees are currently exploring robot designs to examine oil tanks or sewage pipes.Their biggest challenge is to make the robots user-friendly enough.Mr. Azad hopes that the robot could eventually be operated not by engineers but by workers.There will be lots of difficulties they need to overcome in the future. What can we learn about Ductbot?
|
[
"It is a toy car and popular with children.",
"It is designed to move like a snake in the ducts.",
"many LEDs are fitted on it to tell its location.",
"It is actually a camera to capture dirty scenery."
] |
B
|
MMLU_train
|
|
A train running at the speed of 60 km/hr crosses a pole in 6 seconds. Find the length of the train.
|
[
"252",
"121",
"100",
"882"
] |
C
|
Speed = 60*(5/18) m/sec = 50/3 m/sec
Length of Train (Distance) = Speed * Time
(50/3) * 6 = 100 meter.Answer: A
|
AquaRat_train
|
What is required to break bonds in reactants?
|
[
"food",
"protein",
"energy",
"gas"
] |
C
|
Why is activation energy needed? A reaction won’t occur unless atoms or molecules of reactants come together. This happens only if the particles are moving, and movement takes energy. Often, reactants have to overcome forces that push them apart. This takes energy as well. Still more energy is needed to start breaking bonds in reactants. The graphs in Figure below show the changes in energy in endothermic and exothermic reactions. Both reactions need the same amount of activation energy in order to begin.
|
SCiQ_train
|
What type of force exists between two touching surfaces?
|
[
"opposing",
"tension",
"centrifugal",
"friction"
] |
D
|
Friction is the force that resists motion. In most beginning physics classes, friction is ignored. Concepts can be understood and calculations made assuming friction to be nonexistent. Whenever physics intersects with the real world, however, friction must be taken into account. Friction exists between two touching surfaces because even the smoothest looking surface is quite rough on a microscopic scale.
|
SCiQ_train
|
An example of irreversible denaturation of what substance occurs to the liquid albumin when an egg is fried?
|
[
"liquid",
"bacterial",
"acids",
"protein"
] |
D
|
Denaturation and Protein Folding Each protein has its own unique sequence and shape that are held together by chemical interactions. If the protein is subject to changes in temperature, pH, or exposure to chemicals, the protein structure may change, losing its shape without losing its primary sequence in what is known as denaturation. Denaturation is often reversible because the primary structure of the polypeptide is conserved in the process if the denaturing agent is removed, allowing the protein to resume its function. Sometimes denaturation is irreversible, leading to loss of function. One example of irreversible protein denaturation is when an egg is fried. The albumin protein in the liquid egg white is denatured when placed in a hot pan. Not all proteins are denatured at high temperatures; for instance, bacteria that survive in hot springs have proteins that function at temperatures close to boiling. The stomach is also very acidic, has a low pH, and denatures proteins as part of the digestion process; however, the digestive enzymes of the stomach retain their activity under these conditions. Protein folding is critical to its function. It was originally thought that the proteins themselves were responsible for the folding process. Only recently was it found that often they receive assistance in the folding process from protein helpers known as chaperones (or chaperonins) that associate with the target protein during the folding process. They act by preventing aggregation of polypeptides that make up the complete protein structure, and they disassociate from the protein once the target protein is folded.
|
SCiQ_train
|
There are 3 kids in a family-Anna, Peter and Maria. Anna can clean the house
for 1 hour, Peter can do the same job for 3 hours and Maria needs 6 hours.
How much time do they need to work to finish the same cleaning if they do it
together?
|
[
"20min",
"60min",
"30min",
"40min"
] |
D
|
In 6 hours, Anna will do 6 times the work, Peter will do
2 times the work and Maria will just finish the work. So if they
work together they would do 9 times the work required in 6 hours.
Answer:40 minutes
correct answer B
|
AquaRat_train
|
4000 was divided into two parts such a way that when first part was invested at 3% and the second at 5%, the whole annual interest from both the investments is Rs.144, how much was put at 3%?
|
[
"2890",
"3702",
"2730",
"2800"
] |
D
|
(x*3*1)/100 + [(4000 - x)*5*1]/100 = 144
3x/100 + 200 – 5x/100 = 144
2x/100 = 56 è x = 2800
Answer: C
|
AquaRat_train
|
Oceans help control global warming by absorbing what?
|
[
"methane",
"ozone",
"carbon dioxide",
"hydrogen"
] |
C
|
Ocean water also absorbs gases from the atmosphere. The most important are oxygen and carbon dioxide. Oxygen is needed by living things in the oceans. Much of the carbon dioxide sinks to the bottom of the seas. Carbon dioxide is a major cause of global warming. By absorbing carbon dioxide, the oceans help control global warming. At least as long as the carbon dioxide stays in the seas.
|
SCiQ_train
|
What do animals require to grow and develop?
|
[
"sunlight",
"carbon dioxide",
"sucrose",
"food"
] |
D
|
15.1 | Features of the Animal Kingdom By the end of this section, you will be able to: • List the features that distinguish the animal kingdom from other kingdoms • Explain the processes of animal reproduction and embryonic development • Describe the hierarchy of basic animal classification • Compare and contrast the embryonic development of protostomes and deuterostomes Even though members of the animal kingdom are incredibly diverse, animals share common features that distinguish them from organisms in other kingdoms. All animals are eukaryotic, multicellular organisms, and almost all animals have specialized tissues. Most animals are motile, at least during certain life stages. Animals require a source of food to grow and develop. All animals are heterotrophic, ingesting living or dead organic matter. This form of obtaining energy distinguishes them from autotrophic organisms, such as most plants, which make their own nutrients through photosynthesis and from fungi that digest their food externally. Animals may be carnivores, herbivores, omnivores, or parasites (Figure 15.2). Most animals reproduce sexually: The offspring pass through a series of developmental stages that establish a determined body plan, unlike plants, for example, in which the exact shape of the body is indeterminate. The body plan refers to the shape of an animal.
|
SCiQ_train
|
What causes halide minerals to form?
|
[
"salt water evaporation",
"fresh water ionization",
"salt water accumulation",
"salt water ionization"
] |
A
|
Halide minerals are salts. They form when salt water evaporates. This mineral class includes more than just table salt. Halide minerals may contain the elements fluorine, chlorine, bromine, or iodine. Some will combine with metal elements. Common table salt is a halide mineral that contains the elements chlorine and sodium. Fluorite is a type of halide that contains fluorine and calcium. Fluorite can be found in many colors. If you shine an ultraviolet light on fluorite, it will glow!.
|
SCiQ_train
|
I don't think there is anything wrong with your blood. The key to your problem is that long nap after dinner. If you didn't sleep for hours during the early part of the evening, you would be more ready to sleep at bedtime. If you didn't nap after dinner, you would not want to stay up so late, and you would not feel the need to take a sleeping pill. The pill is still working in your system when you get up in the morning. This helps account for the fact that you feel tired all day. You should get out of the habit of sleeping during the early evening. Right after your evening meal, engage in some sort of physical activity-a sport such as bowling, perhaps. Or get together with friends for an evening of cards and conversation. Then go to bed at your usual time or a little earlier, and you should be able to get a good night's rest without taking a pill. If you can get into the habit of spending your evenings this way, I am sure you will feel less tired during the day. At first it may be hard for you to go to sleep without taking a pill. If so, get up and watch television or do some jobs around your house until you feel sleepy. If you fall asleep and then wake up a few hours later, get up but do not take a sleeping pill. Read a while or listen to the radio, and make yourself a few hours' sleep that night, you will feel better in the morning than you usually feel after taking a pill. The next night you will be ready to sleep at an earlier hour. The most important thing is to avoid taking that nap right after dinner and avoid taking pills. Which of the following is TRUE according to the passage?
|
[
"You mustn't take sleeping pills in order to get a good night's sleep.",
"You should stay up if you want to sleep effectively.",
"Food is necessary at night if you fail to go to sleep.",
"It is very important to get out of the habit of taking a nap after dinner."
] |
D
|
MMLU_train
|
|
What is the first part of the large intestine, where wastes enter from the small intestine?
|
[
"stomach",
"esophagus",
"the cecum",
"bowel"
] |
C
|
The cecum is the first part of the large intestine, where wastes enter from the small intestine. The wastes are in a liquid state. As they passes through the colon, which is the second part of the large intestine, excess water is absorbed. The remaining solid wastes are called feces . Feces accumulate in the rectum, which is the third part of the large intestine. As the rectum fills, the feces become compacted. After a certain amount of feces accumulate, they are eliminated from the body. A sphincter controls the anus and opens to let feces pass through.
|
SCiQ_train
|
Technology: Taking the good without the bad? Very soon, unimaginably powerful technologies will remake our lives.This could have dangerous consequences, especially because we may not even understand the basic science underlyi ng them.There's a growing gap between our technological capability and our basic scientific understanding.We can do very clever things with the technology of the future without necessarily understanding some of the science underneath, and that is very dangerous. The technologies that are particularly dangerous over the next hundred years are nanotechnology , artificial intelligence and biotechnology.The benefits that they will bring are beyond doubt.But they are going to be very, very dangerous.I'm working in the field of artificial intelligence.I have a model design for something that might be 50,000 million times smarter than the human brain.Target date is 2010.The only thing that's not possible in the film Terminator is that the people win.If you're fighting against technology w hich is 50,000 million times smarter than you, you probably will not win. Nanotechnology.We've all heard of the grey glue problem, that self-replicating nanotech devices might keep on copying until the world has become sticky glue.And certainly in biotechnology, we've really got a big problem because it's converging with nanotechnology and IT.Once you start mixing nanotech with organisms and you start feeding nanotech-enabled bacteria, we can really go an awful lot further than the Borg in Star Trek .And those superhuman organisms might not like us very much. Eventually these technologies will become routine.That's a threat to humanity.I don't think it's possible to slow it down.So what we need to do is accelerate the scientific research and try to get some extra tools.The problems facing us in the future are getting bigger and bigger.I think if we don't get some proper science done, the future is hopeless indeed. From the text, we know that the author's greatest concern is _ .
|
[
"our lack of technological understanding of the process involved",
"our lack of technological capability",
"creating technology without really understanding the basic science",
"Our refusal to face the consequences of the technology we create"
] |
C
|
MMLU_train
|
|
What has high surface tension because of extensive hydrogen bonding?
|
[
"air",
"gases",
"water",
"hydrocarbons"
] |
C
|
Water has high surface tension because of extensive hydrogen bonding.
|
SCiQ_train
|
What characteristic of the endothelium structure minimizes resistance to the flow of blood?
|
[
"smooth surface",
"transition surface",
"uneven surface",
"liquid surface"
] |
A
|
SCiQ_train
|
|
What is the type of mining called when materials are removed along a strip?
|
[
"strip mining",
"edge mining",
"pit mining",
"surface mining"
] |
A
|
Other methods of surface mining include strip mining, placer mining, and dredging. Strip mining is like open pit mining but with material removed along a strip. A quarry is a type of open-pit mine that produces rocks and minerals that are used to make buildings and roads.
|
SCiQ_train
|
What is the change frogs and butterflies go through?
|
[
"metamorphosis",
"transformation",
"hiatus",
"parthenogenesis"
] |
A
|
SCiQ_train
|
|
Aluminosilicates are formed by replacing some of the si atoms in silicates by which atoms?
|
[
"ce",
"fe",
"ad",
"al"
] |
D
|
character increases. Silicates contain anions that consist of only silicon and oxygen. Aluminosilicates are formed by replacing some of the Si atoms in silicates by Al atoms; aluminosilicates with threedimensional framework structures are called zeolites. Nitrides formed by reacting silicon or germanium with nitrogen are strong, hard, and chemically inert. The hydrides become thermodynamically less stable down the group. Moreover, as atomic size increases, multiple bonds between or to the group 14 elements become weaker. Silicones, which contain an Si–O backbone and Si–C bonds, are high-molecular-mass polymers whose properties depend on their compositions.
|
SCiQ_train
|
Positive charge is mostly found in what part of an atom?
|
[
"electron shell",
"neutrons",
"nucleus",
"ions"
] |
C
|
Rutherford’s discoveries meant that Thomson’s plum pudding model was incorrect. Positive charge is not spread evenly throughout an atom. Instead, it is all concentrated in the tiny nucleus. The rest of the atom is empty space except for the electrons scattered through it. In Rutherford’s model of the atom, which is shown in the Figure below , the electrons move around the massive nucleus like planets orbiting the sun. That’s why his model is called the planetary model. Rutherford didn’t know exactly where or how electrons orbit the nucleus. That research would be undertaken by later scientists, beginning with Niels Bohr in 1913. New and improved atomic models would also be developed. Nonetheless, Rutherford’s model is still often used to represent the atom. You can see an animated version of the model at this URL: http://www. clickandlearn. org/gr9_sci/atoms/modelsoftheatom. html .
|
SCiQ_train
|
In what type of reproduction do parents of different sexes mate to produce offspring?
|
[
"sexual reproduction",
"subject reproduction",
"dual reproduction",
"parallel reproduction"
] |
A
|
Many organisms reproduce sexually. In sexual reproduction, parents of different sexes mate to produce offspring. The offspring have some combination of the traits of the two parents. Ducks are examples of sexually reproducing organisms. Other organisms reproduce asexually. In asexual reproduction, a single parent can produce offspring alone. For example, a bacterial cell reproduces by dividing into two daughter cells. The daughter cells are identical to each other and to the parent cell.
|
SCiQ_train
|
Thicker layers of skin would best suit
|
[
"a bird",
"a scorpion",
"a lizard",
"a leopard seal"
] |
D
|
MMLU_train
|
|
A sum of money becomes triple itself in 5 years at simple interest. How many years will it become six times at the same rate?
|
[
"15 1/2 years",
"12 1/2 years",
"12 1/8 years",
"12 3/2 years"
] |
B
|
100 ---- 200 ---- 5
200 ---- 5
100 ---- 2 1/2
------------------
600 ---- 12 1/2 years
Answer:A
|
AquaRat_train
|
What determines how strongly an atom attracts electrons to itself?
|
[
"enthalpy",
"ionization",
"gravity",
"electronegativity"
] |
D
|
The electronegativity of an atom determines how strongly it attracts electrons to itself.
|
SCiQ_train
|
Where are electrons located in relation to the nucleus?
|
[
"though the nucleus",
"In a sack attached to the nucleus",
"in the nucleus",
"outside the nucleus"
] |
D
|
Neutralization reactions, like the other chemical reactions you have read about so far, involve electrons. Electrons are outside the nucleus of an atom. Certain other reactions involve the nucleus of an atom instead. These reactions are called nuclear reactions. You will read about them in the next chapter, "Nuclear Chemistry. ".
|
SCiQ_train
|
The two lines y = x and x = -4 intersect on the coordinate plane. If z represents the area of the figure formed by the intersecting lines and the x-axis, what is the side length W of a cube whose surface area is equal to 6z?
|
[
"(√2)/3",
"W=8√2",
"W=2√2",
"W=8"
] |
C
|
800 score Official Solution:
The first step to solving this problem is to actually graph the two lines. The lines intersect at the point (-4, -4) and form a right triangle whose base length and height are both equal to 4. As you know, the area of a triangle is equal to one half the product of its base length and height: A = (1/2)bh = (1/2)(4 × 4) = 8; so z = 8.
The next step requires us to find the length of a side of a cube that has a face area equal to 8. As you know the 6 faces of a cube are squares. So, we can reduce the problem to finding the length of the side of a square that has an area of 8. Since the area of a square is equal to s², where s is the length of one of its side, we can write and solve the equation s² = 8. Clearly s = √8 = 2√2 , oranswer choice (D).
|
AquaRat_train
|
Is your schoolbag too heavy to carry? The e-schoolbag will help you. In fact, the e-schoolbag should perhaps be called an e-textbook. It is a small computer for students. Heavy schoolbags have been a serious problem for them for a long time. But the e-schoolbag will change everything. It is much lighter than a usual schoolbag. Also, it is as small as a usual textbook, an exercise book and so on. They can be made into _ that are as small as a stamp. The students can read the text page by page on the "screen", take notes, or even send e-mails to their teachers. All they have to do is to put the right chip into the e-schoolbag and press the button. It is said that e-schoolbags have been put into use in some Chinese middle schools. In 2012, some students in Shanghai started to use e-schoolbags in the new term. Some say that e-textbooks can be easily broken. Some say it is not good to students' eyes. But only time will tell us all. Students can't _ when they use e-schoolbags.
|
[
"send e-mails",
"read the text",
"take notes",
"play computer games"
] |
D
|
MMLU_train
|
|
Sugar is made up of many molecules. When sugar is dissolved in water, what happens to these molecules?
|
[
"They no longer exist.",
"They exist in solution.",
"They evaporate.",
"They combine with water to form new elements."
] |
B
|
MMLU_train
|
|
What is the diversity of living things called?
|
[
"biodiversity",
"life cycle",
"degradation",
"ecosystem"
] |
A
|
Life on Earth is very diverse. The diversity of living things is called biodiversity . A measure of Earth’s biodiversity is the number of different species of organisms that live on Earth. At least 10 million different species live on Earth today. They are commonly grouped into six different kingdoms. Examples of organisms within each kingdom are shown in Figure below .
|
SCiQ_train
|
The average of 1st 3 of 4 numbers is 6 and of the last 3 are 5. If the sum of the first and the last number is 13. What is the last numbers?
|
[
"4",
"6",
"8",
"5"
] |
D
|
A + B + C = 18
B + C + D = 15
A + D = 13
A – D = 3
A + D = 13
2D = 10
D = 5
ANSWER:B
|
AquaRat_train
|
21 ball numbered 1 to 21. A ballis drawn and then another ball is drawn without replacement.
|
[
"2/23",
"9/42",
"1/21",
"2/25"
] |
B
|
The probability that first toy shows the even number,
=1021=1021
Since, the toy is not replaced there are now 9 even numbered toys and total 20 toys left.
Hence, probability that second toy shows the even number,
=920=920
Required probability,
=(1021)×(920)=(1021)×(920)
=9/42
C
|
AquaRat_train
|
A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes.How long will it take to go 5 km in stationary water ?
|
[
"None of these",
"40 minutes",
"1 hr 15 min",
"1 hr 20 min"
] |
C
|
Solution
Rate downstream =(1/10x60) km/hr = 6 km/hr, Rate upstream = 2 km/hr.
Speed in still water =1/2(6 + 2) km/hr = 4 km/hr.
∴ Required time =(5/4)hrs = 1 1/4hrs = 1 hr 15 min. Answer C
|
AquaRat_train
|
When 5 + 6 = 305, 6 + 7 = 425, 7 + 8 = 565, then 8 + 9 = ?
|
[
"685",
"665",
"735",
"725"
] |
D
|
5 + 6 => 5 × 6 = 30 => 30 × 10 + 5 = 305
6 + 7 => 6 × 7 = 42 => 42 × 10 + 5 = 425
7 + 8 => 7 × 8 = 56 => 56 × 10 + 5 = 565
Then 8 + 9 => 8 × 9 = 72 => 72 × 10 + 5 = 725
Answer : E
|
AquaRat_train
|
Types of compounds include covalent and which other compounds?
|
[
"soluble",
"ionic",
"solvent",
"reactant"
] |
B
|
Types of compounds include covalent and ionic compounds. They differ in the nature of the bonds that hold their atoms or ions together.
|
SCiQ_train
|
What are substances that provide hydrogen ions (h+) and lower ph?
|
[
"acids",
"bases",
"nutrients",
"proteins"
] |
A
|
Acids are substances that provide hydrogen ions (H+) and lower pH, whereas bases provide hydroxide ions (OH–) and raise pH. The stronger the acid, the more readily it donates H+. For example, hydrochloric acid and lemon juice are very acidic and readily give up H+ when added to water. Conversely, bases are those substances that readily donate OH–. The OH– ions combine with H+ to produce water, which raises a substance’s pH. Sodium hydroxide and many household cleaners are very alkaline and give up OH– rapidly when placed in water, thereby raising the pH. Most cells in our bodies operate within a very narrow window of the pH scale, typically ranging only from 7.2 to 7.6. If the pH of the body is outside of this range, the respiratory system malfunctions, as do other organs in the body. Cells no longer function properly, and proteins will break down. Deviation outside of the pH range can induce coma or even cause death. So how is it that we can ingest or inhale acidic or basic substances and not die? Buffers are the key. Buffers readily absorb excess H+ or OH–, keeping the pH of the body carefully maintained in the aforementioned narrow range. Carbon dioxide is part of a prominent buffer system in the human body; it keeps the pH within the proper range. This buffer system involves carbonic acid (H2CO3) and bicarbonate (HCO3–) anion. If too much H+ enters the body, bicarbonate will combine with the H+ to create carbonic acid and limit the decrease in pH. Likewise, if too much OH– is introduced into the system, carbonic acid will rapidly dissociate into bicarbonate and H+ ions. The H+ ions can combine with the OH– ions, limiting the increase in pH. While carbonic acid is an important product in this reaction, its presence is fleeting because the carbonic acid is released from the body as carbon dioxide gas each time we breathe. Without this buffer system, the pH in our bodies would fluctuate too much and we would fail to survive.
|
SCiQ_train
|
Protists, fungi, animals, and plants all consist of what kind of cells?
|
[
"enzymes",
"parenchyma",
"eukaryotic",
"xylem"
] |
C
|
SCiQ_train
|
|
The price of a cycle is reduced by 25 per cent. The new price is reduced by a further 70 per cent. The two reductions together are equal to a single reduction of
|
[
"77.5%",
"35%",
"45%",
"30%"
] |
A
|
Price = p
initially price reduced by 25% which means new price is 3/4P
Now on this new price further 70percent is reduced which means the new price is merely 30percent of 3/4P
==> (3/4)x(3/10)P = 9/40P is the new price after both deduction which is 22.5percent of the original value P. This implies this entire series of deduction is worth having discounted 77.5% of P. So answer is D = 77.5%
|
AquaRat_train
|
What is an example of predators eating prey?
|
[
"a boa constrictor devouring a monkey",
"a horse trampling a mouse",
"a cat eating a piece of grass",
"a whale eating tons of algae"
] |
A
|
MMLU_train
|
|
Most fungi reproduce asexually by producing what?
|
[
"spores",
"ions",
"toxins",
"seeds"
] |
A
|
Almost all fungi reproduce asexually by producing spores. A fungi spore is a haploid cell produced by mitosis from a haploid parent cell. It is genetically identical to the parent cell. Fungi spores can develop into new haploid individuals without being fertilized.
|
SCiQ_train
|
What organism is the most disruptive towards the diversity of other species?
|
[
"reptiles",
"insects",
"humans",
"bacteria"
] |
C
|
SCiQ_train
|
|
Tough and Tricky questions: Exponents.
If 3^m3^m3^m = 8^n, then m/n =
|
[
"1",
"1/3",
"2/3",
"2"
] |
D
|
I also soved it, but a bit differently. Thank you for reminding me of this much easier and logical way!
What I did was to test powers of 3 that would lead to 9.
So, we have 3 raised to the same power 3 times and 9 raised to another power one time: 3^m3^m3^m = 9^n
What I did was test 3 raised to the power of 2 like this:
3^2*3^2*3^2 = 9*9*9 = 9^3. This means that m=2 and n=3. So, m/n=2.E
|
AquaRat_train
|
Charisma has a goldfish she keeps in a tank. She planted several underwater plants in the bottom of the tank. How are the goldfish and the plants in the tank similar?
|
[
"Both add oxygen to the water.",
"Both perform photosynthesis.",
"Both are made up of cells.",
"Both eat food."
] |
C
|
MMLU_train
|
|
The physical properties of gases are predictable using mathematical formulas known as what?
|
[
"gas laws",
"vapor laws",
"state laws",
"air laws"
] |
A
|
The physical properties of gases are predictable using mathematical formulas known as gas laws.
|
SCiQ_train
|
What is formed when a subducting plate flows under another tectonic plate?
|
[
"magma",
"fault line",
"boundary plate",
"volcanic arc"
] |
D
|
As you would expect, where plates collide there are lots of intense earthquakes and volcanic eruptions. The subducting oceanic plate melts as it reenters the mantle. The magma rises and erupts. This creates a volcanic mountain range near the coast of the continent. This range is called a volcanic arc . The Andes Mountains, along the western edge of South America, are a volcanic arc ( Figure below ).
|
SCiQ_train
|
Solutions can also become supersaturated , where the amount of solute dissolved exceeds what?
|
[
"its dissolution",
"its concentration",
"part solubility",
"its solubility"
] |
D
|
Solutions can also become supersaturated , where the amount of solute dissolved exceeds its solubility. Supersaturation most commonly occurs when a saturated solution is slowly cooled. They occur frequently in geological and meteorological processes. Supersaturated systems are unstable, and eventually, the solute will precipitate until a saturated solution is regenerated. We can quantify supersaturation by looking at solubility curves. If the ratio of solute to solvent is above the saturation curve at the given temperature, the solution is supersaturated. If it is on the curve, the solution is saturated, and if it is below the curve, the solution is unsaturated.
|
SCiQ_train
|
Skin-diving is a new sport today. This sport take you into a wonderful new world. It is like a visit to the moon! When you are under water, it is easy for you to climb big rocks, because you are on longer heavy. Here, under water, everything is blue and green. During the day, there is plenty of light. When fish swims nearby, you can catch them with your hands. When you have tanks of air on your back, you can stay in deep water for a long time. But you must be careful when you dive in deep water. To catch fish is one of the most interesting parts of this sport. Besides, there are more uses for Skin-diving. You can clean ships without taking them out of the water. You can get many things from the deep sea. Now you can see that Skin-diving is both useful and interesting. This sport _ .
|
[
"is like to travel on the moon",
"is like to play in water",
"is like to visit a new country",
"is like to climb a big rock"
] |
A
|
MMLU_train
|
|
If a beach is below a farm it can make swimmers ill if
|
[
"people go to the movies",
"field fluid drips down",
"humans enjoy eating meat",
"some cattle eat cheese"
] |
B
|
MMLU_train
|
|
A guy was asked to specify his age in years. He said, “Take my age 8 years hence, multiply it by eight and subtract eight times of my age 8 years ago and get the half of the result and you will know my age.” What was the age of that guy?
|
[
"70",
"55",
"63",
"64"
] |
D
|
Current age of the guy = A years.
Then, 8 (A + 8) – 8 (A – 8) = A
(8A + 64) – (8A – 64) = A
A = 128/2 =64
D
|
AquaRat_train
|
Chemical reactions follow which laws?
|
[
"Chemical kinetics",
"Physics Analysis",
"Archie's law",
"thermodynamics"
] |
D
|
Chemical reactions follow the laws of thermodynamics. The First Law of Thermodynamics states that energy can be changed from one form to another, but it cannot be created or destroyed. This law is also known as the Law of Conservation of Energy. The Second Law of Thermodynamics states the energy available after a chemical reaction is always less than that at the beginning of a reaction. This is also commonly referred to as entropy. Entropy can be described as the degree of disorder in a system . That is, as energy is transferred from one form to another, some of the energy is lost as heat, and the amount of available energy decreases. As the energy decreases, the disorder in the system increases, and, by definition, the entropy increases. Ice melting provides an example in which entropy increases. Entropy essentially is a measure of the tendency of a process, such as a chemical reaction, to proceed in a particular direction.
|
SCiQ_train
|
Krishan and Nandan jointly started a business. Krishan invested four times as Nandan did and invested his money for double time as compared to Nandan. Nandan earned Rs. 4000. If the gain is proportional to the money invested and the time for which the money is invested then the total gain was?
|
[
"Rs.20000",
"Rs.24000",
"Rs.36000",
"Rs.28000"
] |
C
|
4:1
2:1
------
8:1
1 ----- 4000
9 ----- ? => Rs.36,000
Answer: D
|
AquaRat_train
|
S is the set of all fractions defined by the formula n/(n + 1), where n is a positive integer less than 20. What is the product Z of all the fractions that are in S?
|
[
"3) 1/2",
"1) 1/20",
"5) 19/20",
"4) 19/40"
] |
B
|
1/2 * 2/3 * 3/4 * ... 19/20
= 1/20
Answer - A
|
AquaRat_train
|
A calf born in a warm season will do what better than a calf born in a cold season?
|
[
"see",
"stand",
"sense",
"flourish"
] |
D
|
MMLU_train
|
|
Biodiversity hot spots are prime candidates for protection because they are prone to what species fate?
|
[
"reduction",
"extinction",
"accumulation",
"mutation"
] |
B
|
SCiQ_train
|
|
If 40% of a certain number is 160, then what is 30% of that number?
|
[
"380",
"180",
"270",
"120"
] |
D
|
Explanation:
40% = 40*4 = 160
30% = 30*4 = 120
Answer: Option C
|
AquaRat_train
|
Find the HCF of
22×32×72, 2×34×7
|
[
"126",
"146",
"128",
"434"
] |
A
|
Explanation:
HCF is Highest common factor, so we need to get the common highest factors among given values. So
we got
2 * 3*3 * 7=126
Answer: Option B
|
AquaRat_train
|
A car consumes 210 liters of petrol weekly. For how many days will 1470 liters of petrol be sufficient?
|
[
"49",
"10",
"20",
"38"
] |
A
|
Explanation:
No explanation is available for this question!
ANSWER:D
|
AquaRat_train
|
What is the term for the small particles that rocks are worn down to by water and wind?
|
[
"pebbles",
"sediments",
"fragments",
"organisms"
] |
B
|
Weathering and erosion. Water, wind, ice, and even plants and animals all act to wear down rocks. Over time they can break larger rocks into smaller pieces called sediments. Moving water, wind, and glaciers then carry these pieces from one place to another. The sediments are eventually dropped, or deposited , somewhere. The sediments may then be compacted and cemented together. This forms a sedimentary rock. This whole process can take hundreds or thousands of years.
|
SCiQ_train
|
If the sum of three consecutive even numbers is 40 more than the average of these numbers, then the largest of these numbers is?
|
[
"26",
"22",
"24",
"20"
] |
B
|
Explanation:
Let the smallest of these number be x. The other two numbers are (x + 2) and (x + 4).
x + (x + 2) + (x + 4) = (X + (X+2) + (x+4)) / 3 + 40
3x + 3*(x + 2) + 3*(x + 4) = x + (x + 2) + (x + 4) + 120
9x + 18 = 3x + 126
6x = 108
x = 18
Therefore, the largest number is 22.
ANSWER C
|
AquaRat_train
|
A growing number of college students are applying to take entry tests for medical and dental schools among increasing graduate unemployment in Korea. "I've decided to apply for the test to enter a medical college to become a doctor, changing from my original plan to prepare for a lawyer qualification exam in order to get a more stable job in the future," said a 24-year-old college graduate, Lee, who majored in business administration during his undergraduate schooling. The new medical and dental school system is getting popularity, attracting an increasing number of students every year since its appearance in 2004, as it is open to all college graduates regardless of their previous majors. The Education Development introduced the new medical and dental education system, in which college students with bachelor's degrees are allowed to study medicine or dentistry by taking the Medical Education Test (MET) and Dental Education Test (DET). Ten medical schools and six dental colleges that have used the new system have received 4,377 applications for the entrance exams. Applicants are getting younger compared with those in their 20s representing 76.9 percent of the total. The tests might be easier for students with biology and chemistry majors, but graduates from other majors are also applying for the tests. Under the existing medical and dental education system, students should take a two-year premedical course followed by a four-year medical course. Students graduating under the new medical or dental education system are given master's degrees, while those graduates who studied under the previous system have bachelor's degrees. We can learn from the passage that _ .
|
[
"it takes a longer time to get the master's degree in the old system",
"students may find it a lot easier to get a bachelor's degree in medicine",
"graduates from other majors like history are not allowed to apply for those schools",
"the new system are not so popular as expected because of its high unemployment"
] |
A
|
MMLU_train
|
|
let p be the product of the positive integers between 1 and 7 inclusive. How many distinct prime factors does p have?
|
[
"4",
"5",
"3",
"1"
] |
A
|
There are 4 primes between 1 and 7, inclusive: 2, 3, 5, and 7, therefore p=1*2*...*7=7! has 4 distinct prime factors.
Answer: D.
|
AquaRat_train
|
Replace the ? by the correct Mathematics symbol to make the expression true
15 ? 3 ? 3 ? 5 = 10
|
[
"15 x 3 ÷ 3 + 5 = 10",
"15 ÷ 3 x 3 - 5 = 10",
"15 x 3 ÷ 3 + 6 = 10",
"15 x 3 + 3 + 5 = 10"
] |
B
|
Answer : A
|
AquaRat_train
|
John purchased 8kg of grapes at the rate of 70 per kg and 9 kg of mangoes at the rate of 55 per kg. How much amount did he pay to the shopkeeper?
|
[
"1045",
"1050",
"1060",
"1055"
] |
D
|
Cost of 8 kg grapes = 70 × 8 = 560.
Cost of 9 kg of mangoes = 55 × 9 = 490.
Total cost he has to pay = 560 + 490 = 1055
C
|
AquaRat_train
|
What is the name of the bone that forms the forehead?
|
[
"frontal bone",
"high bone",
"forebone",
"upper bone"
] |
A
|
Frontal Bone The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella (see Figure 7.5). The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin, is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin, forming rounded brow ridges. These are located just behind your eyebrows and vary in size among individuals, although they are generally larger in males. Inside the cranial cavity, the frontal bone extends posteriorly. This flattened region forms both the roof of the orbit below and the floor of the anterior cranial cavity above (see Figure 7.8b).
|
SCiQ_train
|
You hear this,"No wonder you are fat.All you ever d0 is eat."You feel sad."I skip my breakfast and supper.I run every morning and evening.What else can I do?" Basically you can do nothing.Your genes,not your life habits,determine your weight and your body constantly tries to maintain it. Albert Stunkard of the University of Pennsylvania found from experiments that"80 percent of the children of two fat parents become fat,as compared with no more than 14.percent of the children of two parents of normal weight." How can obese people become thinner through dieting? Well,dieting can be effective.but the health costs are great. Jules Hirsch,a research physician at Rockefeller University,did a study of eight fat people.They were.given a liquid formula providing 600 calories a day.After more than 10 weeks,the subjects lost on average 45 kg.But after leaving the hospital,they all regained the weight. The results were surprising:by metabolic measurement,fat people who lost large amounts of weight seemed like they were starving.They had psychiatric problems.They dreamed of food or of breaking their diet They were anxious and depressed.Some wanted to kill themselves.They hid food in their rooms. Researchers warn that it is possible that weight reduction doesn't result in normal weight,but in an abnormal state lust like that of starved non.obese people. Thin people, however,suffer from the opposite.They have to make a great effort to gain weight Ethan Sims of the University of Vermont got prisoners to volunteer to gain weight.In four to six months--they ate as much as they could.They succeeded in increasing their weight by 20 to 25 percent. But months after the study ended,they were back to normal weight and stayed there. This did not mean that people are completely without hope in controlling their weight.It means that those who tend to be fat will have to constantly battle their genetic inheritance if they want to significantly 1ower their weight. The findings also provide evidence for something scientists thought was true--each person has a comfortable weight range.The range might be as much as 9kg.Someone might weigh 60--69kg without too much effort.But,going above or below the natural weight range is difficult.The body resists by feeling hungry or full and changing.the metabolism to push the weight back to the range it seeks. The story is mainly written to_.
|
[
"point out the relations between our body and mind",
"warn us it's extremely harmful to reduce or gain our weight",
"tell us that it's difficult to make a significant change in our weight",
"stress that dieting 1s a recommended way to help you reach your desired weight"
] |
C
|
MMLU_train
|
|
Fauna will have to flee if their home is
|
[
"prepared",
"having renovations done",
"being built",
"demolished"
] |
D
|
MMLU_train
|
|
What is the sum of the digits of integer k, if k = (10^40- 46)
|
[
"378",
"360",
"351",
"363"
] |
C
|
There are 41 digits in 10^4
When we subtract 46 from it, there will be 40 digits left.
10^4 can be written as 9999999....(40 times) + 1
So,
10^40 - 46 = 9999999....(40 times) + 1 - 46 = 9999999....(40 times) -45
Consider the last 2 digits,
99-45 = 54
The last 2 digits will be 54.
And our number would be 99999......99954 with 2 less 9s after subtraction.
Number of 9s left are 38 and the last two digits are 54
The sum of the digits will be
(38*9) + 5 + 4 =351
Answer:- A
|
AquaRat_train
|
If a man buys 1 lt of milk for Rs.12 and mixes it with 20% water and sells it for Rs.15, then what is the percentage of gain?
|
[
"25%",
"28%",
"55%",
"50%"
] |
D
|
cp=1*12=12
sp=1.2*15=18
gain=sp-cp=6
gain%=(6/12)*100=50%
ANSWER:D
|
AquaRat_train
|
Because alkali metals are so reactive, they are found in nature only in ________ with other elements?
|
[
"combination",
"competition",
"cooperation",
"isolation"
] |
A
|
Hydrogen is a very reactive gas, and the alkali metals are even more reactive. In fact, they are the most reactive metals and, along with the elements in group 17, are the most reactive of all elements. The reactivity of alkali metals increases from the top to the bottom of the group, so lithium (Li) is the least reactive alkali metal and francium (Fr) is the most reactive. Because alkali metals are so reactive, they are found in nature only in combination with other elements. They often combine with group 17 elements, which are very “eager” to gain an electron. At the URL below, you can watch a video that shows just how reactive the alkali metals are.
|
SCiQ_train
|
If Josh, Doug, and Brad have a total of $72 between them, and Josh has three times as much money as Brad but only three-fourths as much as Doug, how much money does Doug have?
|
[
"$8",
"$32",
"$36",
"$9"
] |
C
|
josh+Doug+Brad = 72 ; Josh = 3 brad, Josh =3/4 doug
Josh+1/3 Josh+ 4/3 Josh = 72 (substituted the given values)
Josh = 27. 27= 3/4 doug => doug =36
ANSWER:E
|
AquaRat_train
|
In an exam, Amar scored 64 percent, Bhavan scored 36 percent and Chetan 44 percent. The maximum score awarded in the exam is 400. Find the average mark scored by all the three boys?
|
[
"269",
"192",
"207",
"208"
] |
B
|
Average mark scored by all the three boys =
[64/100 (400) + 36/100 (400) + 44/100 (400)] / 3
= 192
Answer: B
|
AquaRat_train
|
If q is an odd integer, which of the following must also be odd?
|
[
"2q + q",
"3q + 3",
"q + q",
"6q + 4"
] |
A
|
Things to keep in mind:
Odd + odd = even
Odd + even = odd
Odd*odd = odd
Odd*even = even
On checking each option
A. 6q + 4
6q = even, 6q + 4 = even + even = even.
B. q + q
Odd + odd = even. This will be even
C. 3q + 3
3q = odd, 3q + 3 = odd + odd = even
D. 2q + q
2q = even, 2q +q = even + odd = odd
E. q^2 + 1
q^2 = odd, q^2 + 1 = odd + odd = even
Correct option: D
|
AquaRat_train
|
"If you want to see a thing well, reach out and touch it!" That may seem a strange thing to say. But touching things can help you to see them better. Your eyes can tell you that a glass ball is round. But by holding it in your hands, you can feel how smooth and cool the ball is. You can feel how heavy the glass is. When you feel all these about the ball, you really see it. With your skin, you can feel better. For example, your fingers can tell the difference between two coins in your pocket. You can feel a little drop of water on the back of your hand, too. All children soon learn what "Don't touch!" means. They hear it often. Yet most of us keep on touching things as we grow up. In shops, we touch things as we might buy: food, clothes. To see something well, we have to touch it. There are ways of learning to see well by feeling. One way is to close your eyes and try to feel everything that is touching your skin. Feel the shoes on your feet, the clothes on your body, the air on your skin. At first, it is not easy to feel these things. You are too used to them! Most museums are just for looking. But today some museums have some things to touch. There you can feel everything on show. If we want to see better, reach out and touch. Then you will really see. By touching things, _ .
|
[
"you will have a strange feeling",
"you will learn how to reach out your hand",
"you can tell the difference of the things",
"you can tell what colors they are"
] |
C
|
MMLU_train
|
|
A car started running at a speed of 30 km/hr and the speed of the car was increased by 2 km/hr at the end of every hour. Find the total distance covered by the car in the first 9 hours of the journey.
|
[
"642 km",
"742 km",
"342 km",
"352 km"
] |
C
|
The total distance covered by the car in the first 10 hours = 30 + 32 + 34 + 36 + 38 + 40 + 42 + 44 + 46 = sum of 10 terms in AP whose first term is 30 and last term is 46 = 9/2 [30 + 46] = 342 km.
ANSWER:A
|
AquaRat_train
|
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