question stringlengths 1 5.01k | choices listlengths 4 4 | answer stringclasses 4
values | support stringlengths 0 3.68k | source stringclasses 3
values |
|---|---|---|---|---|
10% people of a village in Sri Lanka died by bombardment, 20% of the remainder left the village on account of fear. If now the population is reduced to 3312, how much was it in the beginning? | [
"B)4200",
"D)4500",
"C)4400",
"E)4600"
] | D | X * (90/100) * (80/100) = 3312
X = 4600
ANSWER:E | AquaRat_train |
How many numbers can be formed from 1, 2, 3, 4, 5 (without repetition), when the digit at the unit’s place must be greater than that in the ten’s place? | [
"50",
"54",
"60",
"51 / 3"
] | C | The digit in the unit’s place should be greater than that in the ten’s place. Hence if digit 5 occupies the unit place then remaining four digits need not to follow any order. Hence the required numbers = 4!. However, if digit 4 occupies the unit place then 5 cannot occupy the ten’s position. Hence digit at the ten’s p... | AquaRat_train |
Some types of medicines can be used to cure people when they are sick. Some medicines, however, may cause bad reactions to the people taking them. This difference is an example of | [
"technology being used to help heal people.",
"medical procedures being used to hurt people.",
"expensive medicines being used for many purposes.",
"the solution to one problem causing another problem."
] | D | MMLU_train | |
If you miss seeing a full moon, how long will you have to wait until you get another chance? | [
"7 days",
"a month",
"a week",
"168 hours"
] | B | MMLU_train | |
It's hard to track the blue whale, which has almost been killed off by commercial whaling. Attaching radio devices to it is difficult and visual sightings are too unreliable to give real insight into its behavior. So biologists were delighted early this year when, with the help of the US Navy, they are able to track a ... | [
"An effort to protect an endangered marine species.",
"The civilian use of a military detection system.",
"The exposure of a US Navy top-secret weapon.",
"A new way to look into the behavior of blue whales."
] | B | MMLU_train | |
If a boat goes 7 km upstream in 42 minutes and the speed of the stream is 5 kmph, then the speed of the boat in still water is : | [
"10.5 km/hr",
"None of these",
"3.5 km/hr",
"5 km/hr"
] | C | Solution
Speed of stream = 1/2 (15-8) km/hr= 3.5kmph . Answer A | AquaRat_train |
What is the term for a state of matter that yields to sideways or shearing forces? | [
"plasma",
"fluid",
"solid",
"gravity"
] | B | Section Summary 11.1 What Is a Fluid? • A fluid is a state of matter that yields to sideways or shearing forces. Liquids and gases are both fluids. Fluid statics is the physics of stationary fluids. | SCiQ_train |
The number of all possible selections of one or more questions from 10 given questions, each question having one alternative is | [
"3 10 – 1",
"3 10",
"2 10 – 1",
"None of these"
] | A | Since each question can be selected in 3 ways, by selecting it or by selecting its alternative or by rejecting it. Thus, the total number of ways of dealing with 10 given questions is 310 including a way in which we reject all the questions.
Hence, the number of all possible selections is 3 10 – 1.
Answer C | AquaRat_train |
Children and teenagers who spend lots of time in front of screens-especially TVs-are easier to get more weight as they age .according to a new study. The findings agree with research suggesting all that inactive sitting and always watching advertisements may lead to poor eating habits. Researchers used re... | [
"4.300.",
"3.500.",
"7.800.",
"9,800."
] | C | MMLU_train | |
The difference of the squares of two consecutive even integers is divisible by which of the following integers ? | [
"2",
"4",
"10",
"8"
] | B | Let the two consecutive even integers be 2n and (2n + 2). Then,
(2n + 2)2 = (2n + 2 + 2n)(2n + 2 - 2n)
= 2(4n + 2)
= 4(2n + 1), which is divisible by 4.
Option C | AquaRat_train |
No one is glad to hear that his body has to be cut open by a surgeon and part of it taken out. Today, however, we needn't worry about feeling pain during the operation. The sick person falls into a kind of sleep, and when he awakes, the operation is finished. But these happy conditions are fairly new. It is not many y... | [
"a few more years",
"not long",
"few years",
"two thousand years"
] | B | MMLU_train | |
Heating ice | [
"changes it's chemical make-up",
"will leave a puddle",
"requires a deep freezer",
"makes it even colder"
] | B | MMLU_train | |
Three ways that waves may interact with matter are reflection, refraction, and what? | [
"absorption",
"dispose",
"distortion",
"diffraction"
] | D | Three ways that waves may interact with matter are reflection, refraction, and diffraction. | SCiQ_train |
What is a collection of lymphatic tissue that combines with epithelial tissue lining the mucosa throughout the body? | [
"unassociated lymphoid tissue",
"cottony associated lymphoid tissue ( malt )",
"spheroids associated lymphoid tissue ( malt )",
"mucosa associated lymphoid tissue (malt)"
] | D | Mucosal Immune System The innate and adaptive immune responses compose the systemic immune system (affecting the whole body), which is distinct from the mucosal immune system. Mucosa associated lymphoid tissue (MALT) is a crucial component of a functional immune system because mucosal surfaces, such as the nasal passag... | SCiQ_train |
Dolphins and sharks are showing up in surprisingly shallow water just off the Florida coast. Mullets, crabs, rays and small fish gather by the thousands off an Alabama pirer. Birds covered in oil are crawling deep into marshes , never to be seen again. Marine scientists studying the effects of the BP disaster are seei... | [
"Birds crawl deep into caves.",
"Dolphins and sharks show up in deep water.",
"Tens of thousands of marine animals are found dead.",
"Sea creatures flee from oil spill, gathering near seashore."
] | D | MMLU_train | |
Jacob's Pillow Dance Festival Where: Becket, Massachusetts When: Jun.15---Aug.24 Each summer, this influential dance center presents a number of classes and performances by more than 50 companies from around the world. Highlights in this season include the Dance Theater of Harlem's production of Alvin Ailey's "The Lark... | [
"$18.",
"$41.",
"$360",
"$22."
] | B | MMLU_train | |
News 1 : Have you ever thought of being able to fly around the world in a few hours though it is about 40,000 kilometers? One day,maybe you can. Last Saturday,the American X-43A airplane made its first flight. It reached a speed of 8,000 kilometres an hour. This makes it the fastest plane in the world. The X-43A is on... | [
"3",
"5",
"8",
"12"
] | B | MMLU_train | |
What term is used to describe the way that animals interact with each other or their environment? | [
"animal behavior",
"animal decline",
"animal range",
"animal magnetism"
] | A | Animal behavior is any way that animals interact with each other or their environment. Many animal behaviors promote fitness by increasing the chances of surviving or reproducing. If such behaviors are controlled by genes, they evolve by natural selection. | SCiQ_train |
How many different ways are possible to arrange the letters of the word “MACHINE” so that the vowels may occupy only the odd positions? | [
"125",
"348",
"800",
"576"
] | D | Solution
MACHINE has 4 consonants and 3 vowels.The vowels can be placed in position no. 1, 3, 5, 7
⇒ Total number of ways possible = 4P3 = 24.
For each of these 24 ways the 4 consonants can occupy the other 4 places in 4P4 ways
⇒ Total = 24 × 24 = 576. Answer D | AquaRat_train |
School Activities Our school activities are suitable for all ages and levels including primary, secondary and A-Level. We offer workshops, hands-on activities and a teacher support service to help you get the most out of your visit. All school services are free, but must be booked in advance.[:Z,xx,k.Com] Darwin Centre... | [
"have to pay for the services",
"should be an A-Level student",
"need to visit the school web",
"must book in advance"
] | D | MMLU_train | |
If x is divisible by 6, 7, and 11, which of the following must be the least multiple of x? | [
"77",
"154",
"264",
"462"
] | D | If x is divisible by 6, 7, and 11, then x must be a multiple of 6, 7, and 11.
Hence,the least multiple of x will be 6*7*11=462.
ANSWER:E | AquaRat_train |
Earth's temperature will increase further as more of what colorfully nicknamed gases are put into the atmosphere? | [
"green dioxide gases",
"blue dioxide gases",
"greenhouse gases",
"bluehouse gases"
] | C | Current Situation : Currently the heating effect of extra greenhouse gases (since the start of the industrial revolution) is equal to about . Thus the recent period has recorded parallel increases in concentration of carbon dioxide and average global temperature. As more greenhouse gases are put into the atmosphere the... | SCiQ_train |
In what time will a train 100 m long cross an electric pole, it its speed be 90 km/hr? | [
"2.4 sec",
"3.5 sec",
"4 sec",
"2.9 sec"
] | C | Speed = 90 * 5/18 = 25 m/sec
Time taken = 100/25
= 4 sec.
Answer: D | AquaRat_train |
What kind of weathering is abrasion? | [
"mechanical",
"molecular",
"electromagnetic",
"natural"
] | A | Abrasion is another type of mechanical weathering. With abrasion, one rock bumps against another rock. Gravity causes abrasion as a rock tumbles down a slope. Moving water causes abrasion it moves rocks so that they bump against one another ( Figure below ). Strong winds cause abrasion by blasting sand against rock sur... | SCiQ_train |
The rhino population is smaller than before because | [
"cars crashed into rhinos",
"lions have become more effective at hunting rhinos",
"global warming has increased temperatures",
"people use parts for health remedies"
] | D | MMLU_train | |
When we talk of plants, most of us will think of things that grow from the ground and have green leaves, but there are plants that do not look or act like other plants. Some of these belong to a special class of plants called fungi. Fungi may appear almost everywhere. They commonly grow in wet places where they call ge... | [
"it is unfit for main food",
"it may be dangerous to people",
"it doesn't taste so good",
"it's strange smell may do harm to people"
] | B | MMLU_train | |
Red squirrels have been wiped out from a large area of northern Italy, threatening a further biodiversity crisis for the species similar to its near extinction in the British Isles. There are now no red squirrels left in an area of more than 1,150 square kilometres (sq km) in Piedmont, according to research from the un... | [
"were set free to the wild by people in Turin",
"were found to have destructive effects in the 1880s",
"were brought to Italy as a gift to the US ambassador",
"were forbidden to be imported to the UK from before the Second World War"
] | D | MMLU_train | |
Zebras cannot clap. However, one weekend a magic clown wiggled his nose and said a few magical words and a zebra could clap. This zebra lived in a zoo with many other zebras. This zebra's name was John, John the Zebra. John was so excited that he could clap. He tried to clap as much as he could. He had trouble understa... | [
"All the time",
"When he was Happy",
"When he scared",
"When he was sad"
] | A | MMLU_train | |
What is the term for rain that has a ph less than 5, due to carbon dioxide dissolving? | [
"carbon rain",
"acid rain",
"frozen rain",
"basic rain"
] | B | Acid rain is rain that has a pH less than 5 (see Figure below ). The pH of normal rain is 5.6. It’s slightly acidic because carbon dioxide in the air dissolves in rain. This forms carbonic acid, a weak acid. | SCiQ_train |
Billy's new puppy had floppy ears. That might be because | [
"The puppy's mother had ears that looked the same way",
"The puppy was deaf",
"The puppy was tired",
"The puppy was missing the bones in its ears"
] | A | MMLU_train | |
How many times are the hands of a clock at right angle in a day? | [
"41",
"40",
"21",
"44"
] | D | A
44
In 12 hours, they are at right angles 22 times.
In 24 hours, they are at right angles 44 times. | AquaRat_train |
Two circular signs are to be painted. If the radius of the larger sign is three times that of the smaller sign, how many times more paint is needed to paint the larger sign? (We can assume that a given amount of paint covers the same area on both signs.) | [
"18",
"9",
"3",
"15"
] | B | Let R be the radius of the smaller sign.
The area A of the smaller sign is A = piR^2.
The area of the larger sign is pi(3R)^2=9piR^2=9A.
Since the area is 9 times larger, we need 9 times more paint for the larger sign.
The answer is B. | AquaRat_train |
? x 48 = 173 x 240 | [
"534",
"685",
"545",
"865"
] | D | Let y x 48 = 173 x 240
Then y = (173 x 240) / 48
=173 x 5
= 865 .
ANSWER :C | AquaRat_train |
What is the term for stored energy that an object has due to its position or shape? | [
"potential energy",
"vertical energy",
"mechanical energy",
"kinetic energy"
] | A | A: Electric charges flow when they have electric potential energy. Potential energy is stored energy that an object has due to its position or shape. | SCiQ_train |
A piece of talc is rolled over on a black chalkboard and | [
"burns the board",
"wipes a spill",
"makes a streak",
"makes a dent"
] | C | MMLU_train | |
"Hey, don't read in the hallway. Your eyesight will be damaged." You must have heard such warnings many times. Don't read in dim light! This is one of the "pearls of wisdom" that are supposed to help us live a healthy life. Such common beliefs, however, lack scientific basis, according to a paper published recently in... | [
"They are pearls of wisdom",
"They help us live in healthy ways",
"They are well-known theories.",
"They do not have scientific basis."
] | D | MMLU_train | |
Aging occurs as cells lose their ability to do what? | [
"duplicate",
"fold",
"split",
"divide"
] | D | Aging occurs as cells lose their ability to divide. | SCiQ_train |
How much time will it take for an amount of 600 to yield 81 as interest at 4.5% per annum of simple interest? | [
"5 years",
"4 years",
"3 years",
"6 years"
] | C | Time = (100 x 81)/(600 x 4.5) years = 3 years.
answer A | AquaRat_train |
What is it that surrounds cells and serve to keep the insides separated from the outsides? | [
"abundant membranes",
"inner membranes",
"similar membranes",
"biological membranes"
] | D | Membranes Biological membranes surround cells and serve to keep the insides separated from the outsides. They are formed of phospholipid bilayer1 s, which by definition are a double layer of fatty acid2 molecules (mostly phospholipid3 s, lipids containing lots of phosphorus). Proteins4 serve very important functions in... | SCiQ_train |
The limit to how much solute will dissolve in a given amount of solvent is called what? | [
"strength",
"solubility",
"potency",
"density"
] | B | Solubility There is usually a limit to how much solute will dissolve in a given amount of solvent. This limit is called the solubility of the solute. Some solutes have a very small solubility, while other solutes are soluble in all proportions. Table 9.2 "Solubilities of Various Solutes in Water at 25°C (Except as Note... | SCiQ_train |
What energy is the energy of motion? | [
"potential",
"thermal",
"optimal",
"kinetic"
] | D | Kinetic energy is the energy of motion. Any object that is moving possesses kinetic energy. Baseball involves a great deal of kinetic energy. The pitcher throws a ball, imparting kinetic energy to the ball. When the batter swings, the motion of swinging creates kinetic energy in the bat. The collision of the bat with t... | SCiQ_train |
What are the high points in a transverse wave called? | [
"peaks",
"apex",
"waves",
"crests"
] | D | A transverse wave is characterized by the high and low points reached by particles of the medium as the wave passes through. The high points are called crests, and the low points are called troughs. You can see both in the Figure below . | SCiQ_train |
In 2004, three young men went to a dinner party in San Francisco. Afterward ,they wanted to share a video from the party with their friends. They wanted to send it over the Internet. But at the time, the process of sharing videos that way was difficult. Using e-mail did not work and the friends complained that there,... | [
"YouTube makes sharing videos easy.",
"Over 70,000 filmmakers are not professionals.",
"Many videos on YouTube are short.",
"Most of the filmmakers are just everyday people."
] | B | MMLU_train | |
The average of 1st 3 of 4 numbers is 16 and of the last 3 are 15. If the sum of the first and the last number is 13. What is the last numbers? | [
"5",
"3",
"9",
"8"
] | A | A + B + C = 48
B + C + D = 45
A + D = 13
A – D = 3
A + D = 13
2D = 10
D = 5
Answer: C | AquaRat_train |
Most crustaceans have separate sexes, so they reproduce sexually using what? | [
"asexual reproduction",
"eggs and pod",
"eggs and sperm",
"pod and eggs"
] | C | Most crustaceans have separate sexes, so they reproduce sexually using eggs and sperm. Many land crustaceans, such as the Christmas Island red crab, mate every season and return to the sea to release the eggs. Others, such as woodlice, lay their eggs on land when the environment is damp. In some crustaceans, the female... | SCiQ_train |
At what rate of compound interest per annum will a sum of Rs. 1200 become Rs. 1348.32 in 2 years? | [
"8",
"7.5",
"6",
"6.5"
] | C | Let the rate be R% p.a. Then, 1200 x (1 + R/100)*(1 + R/100) = 1348.32 (1 + R/100)*(1 + R/100) = 134832/120000 = 11236/10000 (1 + R/100)*(1 + R/100) = (106/100)*(106/100) 1 + R/100 = 106/100 R = 6%
Answer A | AquaRat_train |
One species benefits while the host species is harmed in what type of relationship? | [
"mutualism",
"amensalism",
"fungal",
"parasitism"
] | D | In a parasitism, the parasitic species benefits, while the host species is harmed. | SCiQ_train |
What type of fatty acids have bent chains? | [
"saturated fatty acids",
"unsaturated fatty acids",
"lipids",
"cholesterol"
] | B | Fatty Acids. Saturated fatty acids have straight chains, like the three fatty acids shown on the left. Unsaturated fatty acids have bent chains, like all the other fatty acids in the figure. | SCiQ_train |
The technology is improving every year. We will see some very exciting home robots in the next few years. In the future the robots can do lots of things. 1. Getting things In a few years, it will be possible to tell your home robot to get a piece of bread for you. The robot will use its eyes and an arm to get the bread... | [
"a hand",
"eyes and a leg",
"an arm",
"eyes and an arm"
] | D | MMLU_train | |
Which forests are found throughout the ocean in temperate and arctic climates? | [
"cedar",
"coral reefs",
"mangrove",
"kelp"
] | D | Multicellular seaweeds called kelp may grow as large as trees. They are the food base of ecosystems called kelp forests (see Figure below ). Kelp forests are found throughout the ocean in temperate and arctic climates. They are highly productive ecosystems. | SCiQ_train |
Emergency rooms (ER) are supposed to cure people but Dr. John Stemgold wonders if working in an ER in Willits made him sick. The ER was downwind of the Remco chrome plant. "I used to sit facing that window and kind of daydream out the window, looking at Remco, looking at the fog coming out of there. Then I would cough ... | [
"When they make smog-forming gases.",
"When some problem is noticed.",
"Ten years after they are first used.",
"When the plant faces collapse."
] | B | MMLU_train | |
What regulates homeostasis and basic survival behaviors? | [
"mitosis",
"cell membrane",
"hippocampus",
"hypothalamus"
] | D | SCiQ_train | |
A certain list of 100 data has an average (arithmetic mean) of 7 and a standard deviation of d, where d is positive. Which of the following pairs of data, when added to the list, must result in a list of 104 data with standard deviation less than d? | [
"0 and 0",
"-7 and 0",
"7 and 7",
"0 and 7"
] | C | Standard deviation shows how much variation there is from the mean. A low standard deviation indicates that the data points tend to be very close to the mean, whereas high standard deviation indicates that the data are spread out over a large range of values.
So when we add numbers, which are far from the mean we are s... | AquaRat_train |
Species distributions are a consequence of both ecological and evolutionary what? | [
"particles",
"fluctuations",
"interactions",
"isolation"
] | C | SCiQ_train | |
What limits the growth or development of an organism, population, or process? | [
"mutation factor",
"limiting factor",
"limiting membrane",
"decreasing factor"
] | B | In the predator-prey example, one factor limits the growth of the other factor. As the prey population decreases, the predator population begins to decrease as well. The prey population is a limiting factor. A limiting factor limits the growth or development of an organism, population, or process. | SCiQ_train |
In an election a candidate who gets 60% of the votes is elected by a majority of 1200 votes. What is the total number of votes polled? | [
"5200",
"4500",
"7520",
"6000"
] | D | Let the total number of votes polled be x
Then, votes polled by other candidate = (100-60)% of x = 40% of x
60% of x - 40% of x = 1200
20x/100 = 1200
x = 1200*100/20 = 6000
Answer is E | AquaRat_train |
The area of a parallelogram is 128sq m and its altitude is twice the corresponding base. Then the length of the base is? | [
"8",
"1",
"7",
"9"
] | A | 2x * x = 128
=> x= 8
Answer: A | AquaRat_train |
The organisms likely to have the waxiest leaves are | [
"birds",
"gorilla",
"humans",
"jades"
] | D | MMLU_train | |
What occurs when arterioles lose their normal muscular tone and dilate dramatically? | [
"congenital shock",
"cardio shock",
"respiration shock",
"vascular shock"
] | D | • Vascular shock occurs when arterioles lose their normal muscular tone and dilate dramatically. It may arise from a variety of causes, and treatments almost always involve fluid replacement and medications, called inotropic or pressor agents, which restore tone to the muscles of the vessels. In addition, eliminating o... | SCiQ_train |
In what ratio should a variety of rice costing Rs. 6 per kg be mixed with another variety of rice costing Rs. 8.75 per kg to obtain a mixture costing Rs. 7.50 per kg? | [
"4/9",
"5/6",
"5/7",
"5/2"
] | B | Let us say the ratio of the quantities of cheaper and dearer varieties = x : y
By the rule of allegation, x/y = (87.5 - 7.50) / (7.50 - 6) = 5/6
Answer:A | AquaRat_train |
Monitoring global warming usually requires a Ph. D. and enough maths to glaze your eyes. But that Francisco Lopez and Ruby Nostrant track what climate change is doing to five different plants in Tucson, Arizona and they are only in the second grade. "We are collecting data because the weather is changing and the plants... | [
"watching early spring blooms and changes in animals",
"studying the biological timing of earth",
"collecting data of the local weather",
"tracking the early spring blooms of some local plants"
] | D | MMLU_train | |
China has mapped out plans for its new launches in the Shenzhou program on the next flight. But one conclusion seems to have escaped most reports in the aerospace media.The flight of Shenzhou 7 could be timed to coincide with the Beijing Olympics. Plans for 2008 Summer Olympics call for the events to be held between th... | [
"Yang Liwei--one the Chinese astronauts walked in space in 2003.",
"Yang Liwei--one the Chinese astronauts will be singing with Jacky Chan in space in 2008.",
"The spacesuit for the flight of Shenzhou 7 hasn't been prepared well.",
"China will send its second manned spacecraft in 2008."
] | C | MMLU_train | |
It is said that people born on different dates have different characteristics. For example, people who were born between March 21 and April 20 are likely to be active and strong. They like power and enjoy adventures. People who were born between April 21 and May 21 are likely to learn more slowly, but they can remember... | [
"birth dates",
"abilities",
"star signs",
"birth dates and characteristics"
] | D | MMLU_train | |
If a creature is building a soft space for sitting and roosting, it is likely | [
"a chickadee",
"a rabbit",
"a ferret",
"a dog"
] | A | MMLU_train | |
The potential of what can be used to measure the ph of a solution? | [
"galvanic cell",
"stimulation cell",
"symbiotic cell",
"electrodes cell"
] | A | Thus the potential of a galvanic cell can be used to measure the pH of a solution. Exercise Suppose you work for an environmental laboratory and you want to use an electrochemical method to measure the concentration of Pb2+ in groundwater. You construct a galvanic cell using a standard oxygen electrode in one compartme... | SCiQ_train |
A rectangular lawn of dimensions 120 m * 60 m has two roads each 10 m wide running in the middle of the lawn, one parallel to the length and the other parallel to the breadth. What is the cost of traveling the two roads at Rs.3 per sq m? | [
"s.3900",
"s.5100",
"s.3228",
"s.3922"
] | B | Area = (l + b – d) d
(120 + 60 – 10)10 => 1700 m2
1700 * 3
= Rs.5100
Answer:A | AquaRat_train |
What type of constraints are placed on technological design? | [
"legal and social",
"physical and legal",
"moral and legal",
"physical and social"
] | D | Technological design constraints may be physical or social. | SCiQ_train |
Which is a major organ of the nervous system? | [
"brain",
"stomach",
"lung",
"bone"
] | A | MMLU_train | |
Mrs. Rodger got a weekly raise of $145. If she gets paid every other week, write an integer describing how the raise will affect her paycheck. | [
"$ 643",
"$ 545",
"$ 231",
"$ 145"
] | D | Let the 1st paycheck be x (integer).
Mrs. Rodger got a weekly raise of $ 145.
So after completing the 1st week she will get $ (x+145).
Similarly after completing the 2nd week she will get $ (x + 145) + $ 145.
= $ (x + 145 + 145)
= $ (x + 290)
So in this way end of every week her salary will increase by $ 145.
correct a... | AquaRat_train |
The time taken by a man to row his boat upstream is twice the time taken by him to row the same distance downstream. If the speed of the boat in still water is 54 kmph, find the speed of the stream? | [
"17",
"18",
"14",
"12"
] | B | The ratio of the times taken is 2:1.
The ratio of the speed of the boat in still water to the speed of the stream = (2+1)/(2-1) = 3/1 = 3:1
Speed of the stream = 54/3 = 18 kmph.
Answer:B | AquaRat_train |
Q:Robert purchased $1500 worth of US saving bonds. If bonds are sold in $50 or $100 denominations only, which of the following CANNOT be the number of US saving bonds that Robert purchased? | [
"30",
"20",
"40",
"10"
] | C | I started off with looking at the answer choices... 10-20-27-30 are in a tight range, so my guess was to look and rule out the bigger numbers.
The total amount is $1500. So with 40 bonds, each $50 = $2000 , we already exceed the $1500 limit. Hence E is the answer. | AquaRat_train |
How many neutrons do 99% of carbon atoms have? | [
"sixteen",
"eight",
"six",
"five"
] | C | All the atoms of a given element have the same number of protons and electrons. The number of neutrons, however, may vary for atoms of the same element. For example, almost 99 percent of carbon atoms have six neutrons, but the rest have either seven or eight neutrons. Atoms of an element that differ in their numbers of... | SCiQ_train |
A cistern is normally filled in 12 hours but takes two hours longer to fill because of a leak in its bottom. If the cistern is full, the leak will empty it in? | [
"33",
"99",
"84",
"11"
] | C | 1/12 - 1/x = 1/14
x = 84
Answer: B | AquaRat_train |
What is the decimal equivalent of (1/4)^5? | [
"0.0625",
"0.0001",
"0.25",
"0.0016"
] | B | (1/4)^5 = 1/1024 =0.0001
Answer : C | AquaRat_train |
The King lived a small house near New York with their child . Sometimes Mr King came back from work very late. When his wife and the child were asleep, he opened the front door of his house with his key and came in very quietly. But one night when he was coming home late, he lost his key. So when he reached his house ,... | [
"with his wife's help",
"by knocking at the door",
"with his child's help",
"by opening the door with his key"
] | D | MMLU_train | |
Which carbohydrates can be classified in terms of chain length? | [
"binary",
"complex",
"simple",
"atomic"
] | C | Simple carbohydrates can be classified in terms of chain length. | SCiQ_train |
The greatest number which can divide 1356,1868 and 2764 leaving the same remainder 12 in each case, is : | [
"None of these",
"64",
"260",
"156"
] | B | Solution
Required number = H.C.F. of (1356-12), (1868-12) and (2764-12)
= H.C.F of 1344,1856 and 2752 = 64. Answer A | AquaRat_train |
Rohith,who works in a parcel service, has a certain number of small plastic boxes to pack into parcels. If he packs 3,4,5 or 6 in a parcel, he is left with one over; if he packs 7 in a parcel, none is left over. What is the number of boxes, he may have to pack? | [
"222",
"1368",
"301",
"223"
] | C | The required number of boxes is such that it leaves a remainder of 1 when divided by 3, 4, 5 or 6 and no remainder of 1 when divided by 3, 4, 5 or 6 and no remainder when divided by 7. Such a number is 301.
Answer:B | AquaRat_train |
Deeper layers of rock must be older than layers closer to the surface, this is the law of what? | [
"erosion",
"flux",
"superposition",
"diffraction"
] | C | Superposition refers to the position of rock layers and their relative ages ( Figure below ). Relative age means age in comparison with other rocks, either younger or older. The relative ages of rocks are important for understanding Earth’s history. New rock layers are always deposited on top of existing rock layers. T... | SCiQ_train |
What is the most electron-pair bonds a nitrogen atom can participate in? | [
"three",
"four",
"seven",
"five"
] | B | Reactions and Compounds of Nitrogen Like carbon, nitrogen has four valence orbitals (one 2s and three 2p), so it can participate in at most four electron-pair bonds by using sp3 hybrid orbitals. Unlike carbon, however, nitrogen does not form long chains because of repulsive interactions between lone pairs of electrons ... | SCiQ_train |
According to the Big Bang Theory, which element most likely formed first? | [
"carbon dioxide",
"hydrogen",
"oxygen",
"nitrogen"
] | B | MMLU_train | |
The Internet has got into all the fields of our life. We can study and work on it. We can find a job on it. We can communicate on it. We can treat friends on it. We can buy and sell on it. We can do almost everything on the Internet, and almost anywhere at any time. However, although the Internet provides services for ... | [
"Don't believe others if you don't know them.",
"Remember never use your ID Card on the Internet.",
"Never use the Internet in the future.",
"Pay attention to the safety of the information online."
] | D | MMLU_train | |
Closely associated with "work", what is characterized by its many forms and the fact that it is conserved? | [
"energy",
"fuel",
"matter",
"heating"
] | A | Introduction to Work, Energy, and Energy Resources Energy plays an essential role both in everyday events and in scientific phenomena. You can no doubt name many forms of energy, from that provided by our foods, to the energy we use to run our cars, to the sunlight that warms us on the beach. You can also cite examples... | SCiQ_train |
What is the major cause of outdoor air pollution? | [
"agricultural equipment",
"electric lines",
"burning fossil fuels",
"manufacturing industry"
] | C | The major cause of outdoor air pollution is the burning of fossil fuels. Fossil fuels are burned in power plants, factories, motor vehicles, and home heating systems. Ranching and using chemicals such as fertilizers also cause outdoor air pollution. Erosion of soil in farm fields, mining activities, and construction si... | SCiQ_train |
If the number 5 * 2 is divisible by 6, then * = ? | [
"8",
"1",
"2",
"6"
] | C | C
2
6 = 3 x 2. Clearly, 5 * 2 is divisible by 2. Replace * by x.
Then, (5 + x + 2) must be divisible by 3. So, x = 2. | AquaRat_train |
What term is used to describe the average weather of a place over many years? | [
"atmosphere",
"landscape",
"climate",
"meteorology"
] | C | Climate is the average weather of a place over many years. It includes average temperatures. It also includes average precipitation. The timing of precipitation is part of climate as well. What determines the climate of a place? Latitude is the main factor. A nearby ocean or mountain range can also play a role. | SCiQ_train |
A honey bee flies for 10 seconds, from a daisy to a rose. It immediately continues to a poppy, flying for 6 additional seconds. The distance the bee passed, flying from the daisy to the rose is 18 meters longer than the distance it passed flying from the rose to the poppy. The bee flies to the poppy at 3 meters per sec... | [
"1.6",
"1.8",
"1.0",
"1.5"
] | B | Let the speed be 's' and let the distance between rose and poppy be 'x'
The problem boils down to:
Rose to Poppy: s+3=x/6 ------- 1
Daisy to Rose: s=(x+18)/10------ 2
so from 1 we can re write x as x=6s+18
substitute the value of x in 2 gives us s=1.8 m/s
D | AquaRat_train |
If C + D = 17 and C and D are positive integers, which of the following is a possible value for 3C + 2D? | [
"-29",
"29",
"19",
"0"
] | D | c + d = 11
3c + 2d = 2c + c + 2d = 2(c+d) + c = 34+ c=c=-34
Now this reults in
c+d=17=-34+d=17=d=51
c=-34;d=51
3c + 2d=3(-34)+2(51)=-102+102=0
3c + 2d= 0
Hence, C is the right answer. | AquaRat_train |
In recent years, it has been hypothesized that molecules in the environment also act as? | [
"endocrine disruptors",
"catalysts",
"homeostasis disruptors",
"pathogens"
] | A | SCiQ_train | |
In 1990 the budgets for projects Q and V were $700,000 and $780,000, respectively. In each of the next 10 years, the budget for Q was increased by $30,000 and the budget for V was decreased by $10,000. In which year was the budget for Q equal to the budget for V ? | [
"1994",
"1996",
"1995",
"1992"
] | D | Let the no of years it takes is x.
700+30x = 780-10x --> 40x = 80 and x=2.
Thus, it happens in 1992.
A. | AquaRat_train |
Do most humans feed at one trophic level, or more than one? | [
"less than one",
"none",
"more than one",
"one"
] | C | Many consumers feed at more than one trophic level. Humans, for example, are primary consumers when they eat plants such as vegetables. They are secondary consumers when they eat cows. They are tertiary consumers when they eat salmon. | SCiQ_train |
A tradesman by means of his false balance defrauds to the extent of 20%? in buying goods as well as by selling the goods. What percent does he gain on his outlay? | [
"44%",
"13%",
"77%",
"66%"
] | A | g% = 20 + 20 + (20*20)/100
= 44%
Answer: C | AquaRat_train |
Birds live in the trees. Squirrels live in the trees. But do you know that some frogs live in the trees, too? The tree frog is hard to find. It can change colors. On green leaves, it stays green. On a brown branch ,it turns brown. Some tree frogs can change from green to gold or blue. Tree frogs have legs and wide f... | [
"the colors of a special frog",
"the sounds of a special frog",
"the eyes of a special frog",
"something about tree frogs"
] | D | MMLU_train | |
Spring is an inviting season for outdoor activities. But be careful--the warm weather is also a hotbed for viruses and disease. This March, the influenza A(H7N9) virus hit Shanghai, Anhui, Jiangsu and Zhejiang. It was reported that by April 11 at least 35 people had been infected with the H7N9 virus, and nine of th... | [
"It is the H7N9 virus.",
"It is the H5N1 virus.",
"It is the H1N1 virus.",
"It is A H7 virus."
] | A | MMLU_train | |
What is a key factor in the growth of populations? | [
"legislation",
"gentrification",
"assimilation",
"immigration"
] | D | Moving into an area, or immigration, is a key factor in the growth of populations. Shown above is actual vintage luggage left by some of the millions of immigrants who came through Ellis Island and into the United States. | SCiQ_train |
Spiders use the hydrostatic pressure generated by an open type of what anatomical system to extend their legs? | [
"circulatory",
"vascular",
"pulmonary",
"respiratory"
] | A | SCiQ_train | |
The ages of two persons differ by 20 years. If 5 years ago, the older one be 5 times as old as the younger one, then their present ages, in years, are | [
"30, 10",
"35, 15",
"25, 5",
"50, 30"
] | A | Let the ages be ’x’ and ’y’ years now.
Then x - y = 20 ...(i)
(x - 5) = 5(y - 5) ...(ii)
From (i) and (ii),
20 + y - 5 = 5y - 25
y = 10 and x = 30.
ANSWER:B | AquaRat_train |
A train running at certain speed crosses a stationary engine in 20 seconds. To find out the speed of the train, which of the following information is necessary: | [
"Both the length of the train and the length of the engine.",
"none of these",
"Only the length of the train",
"Either the length of the train or the length of the engine."
] | A | Explanation:
Since the sum of the length of the train and the length of the engine is needed, so both the lengths must be known.
Correct Option : D | AquaRat_train |
If a: b = 10: 9, b: c = 17: 12, find a: b: c? | [
"180: 163: 138",
"170: 153: 108",
"160: 173: 128",
"190: 183: 148"
] | B | a: b = 10: 9
b: c = 17: 12
a: b: c = 170: 153: 108
ANSWER:C | AquaRat_train |
What is the bending of waves around a corner called? | [
"propulsion",
"reflection",
"absorption",
"diffraction"
] | D | Diffraction is the bending of waves around a corner. | SCiQ_train |
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