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Which of the following must be an integer if the integer x is divisible by both 18 and 12?
[ "x/36", "x/126", "x/252", "x/189" ]
A
the integer has to be multiple of LCM of 18 and 12, which is 36.. so x/36 will be an integer ans D
AquaRat_train
What material comprises the sun and other stars, as well as lightning and the northern lights?
[ "gamma", "plasma", "aurora", "gas" ]
B
The sun and other stars consist of plasma. Plasma is also found naturally in lightning and the northern and southern lights. Human-made plasma is found in fluorescent lights, plasma TV screens, and plasma spheres.
SCiQ_train
What occurs when a cold air mass runs into a warm air mass?
[ "a cold front", "an occluded front", "a snow day", "a stationary front" ]
A
A cold front occurs when a cold air mass runs into a warm air mass. This is shown in Figure below . The cold air mass moves faster than the warm air mass and lifts the warm air mass out of its way. As the warm air rises, its water vapor condenses. Clouds form, and precipitation falls. If the warm air is very humid, pre...
SCiQ_train
How do you like your school? Have you ever written to your headmaster to express your idea? Here are some letters written by students from different schools. Luke, 14, from Jiangsu I will give some suggestions about our school uniform. In our school, we students have to wear uniform every day. But the yellow and green ...
[ "personal experiences", "how to make schools better", "spare time activities", "how to deal with other students" ]
A
MMLU_train
Pharmacist and surveyor are two career options based in what type of science?
[ "visible", "Business", "physical", "obvious" ]
C
There are many career options in physical science. Examples include pharmacist and surveyor.
SCiQ_train
What is the name of the outer part of the adrenal gland located above the kidneys?
[ "cortex", "nucleus", "spleen", "mitochondria" ]
A
The two adrenal glands are located above the kidneys. Each gland has an inner and outer part. The outer part, called the cortex, secretes hormones such as cortisol, which helps the body deal with stress, and aldosterone, which helps regulate the balance of minerals in the body. The inner part of each adrenal gland, cal...
SCiQ_train
As x increases from 169 to 155, which of the following must increase? I. 2x - 5 II. 1 - 1/x III. 1/(x^2 - x)
[ "I and II", "I and III", "III only", "I only" ]
C
I. 2x - 5 --> x decreases from 169 to 155 --> 2x decreases --> 2x - 5 decreases. II. 1 - 1/x --> x decreases from 169 to 155 --> 1/x increases --> 1 -1/x decreases. III. 1/(x^2 - x) --> x decreases from 169 to 155 --> x^2-x decreases --> 1/(x^2 - x) increases. Answer: B.
AquaRat_train
Two trains travelling in the same direction at 50.8 and 14.8 kmph completely pass off another in 45 sec.. If the length of the first train is 112 m, what is the length of the second train?
[ "450 m", "383 m", "338 m", "833 m" ]
C
RS = 50.8 – 14.8= 36* 5/18 =10 mps T = 45 sec D = 10* 45= 450 m 112 -------- 338 m Answer: A
AquaRat_train
What type of treatment is being researched that may cure or prevent genetic disorders?
[ "regulatory therapy", "variation therapy", "preventive therapy", "gene therapy" ]
D
There are many genetic disorders that are due to a single gene. What if we could fix this faulty gene? With the development of gene therapy, that may eventually be possible for many types of genetic disorders.
SCiQ_train
Find the middle one when the sum of 3 consecutive even numbers is 36?
[ "12", "17", "16", "10" ]
A
3 consecutive numbers can be a - 1, a, a + 1 So sum of numbers = 3a = 36. Hence a = 12. B
AquaRat_train
Which instruments are used to measure the angle of the slope of a volcano?
[ "tiltmeters", "compass", "calipers", "altimeter" ]
A
All that magma and gas pushing upwards can make the volcano’s slope begin to swell. Ground swelling may change the shape of a volcano or cause rock falls and landslides. Most of the time, the ground tilting is not visible. Scientists detect it by using tiltmeters, which are instruments that measure the angle of the slo...
SCiQ_train
What type of radio waves exist in the 540 to 1600 khz frequency range?
[ "fm radio waves", "microwaves", "sound waves", "am radio waves" ]
D
AM radio waves are used to carry commercial radio signals in the frequency range from 540 to 1600 kHz. The abbreviation AM stands for amplitude modulation, which is the method for placing information on these waves. (See Figure 24.12. ) A carrier wave having the basic frequency of the radio station, say 1530 kHz, is va...
SCiQ_train
What kind of mutations are produced by nucleotide-pair insertions or deletions?
[ "frameshift", "cloned", "framing", "shifty" ]
A
SCiQ_train
A car may produce many forms of energy from the fuel it uses. Which indicates that a car does not use fuel with 100% efficiency?
[ "The car changes speed.", "The car engine gets hot.", "The car stops quickly.", "The car slides on slippery streets." ]
B
MMLU_train
Here is a picture of Mr Wang's family. The man in the middle is Mr Wang, the father. The woman is the mother. They only have a daughter. Her name is Wang Jia. She is 14 years old. She is a good student in Foreign Language School. Her classmates like her very much, and her parents like her very much, too. The daughter ...
[ "13", "14", "15", "12" ]
B
MMLU_train
What is the value of 3x^2 − 1.8x + 0.4 for x = 0.6?
[ "0", "0.4", "1.08", "−0.3" ]
B
3x^2-1.8x+0.4 for x=0.6 =3(0.6*0.6)-3*0.6*(0.6)+0.4 =0+0.4 =0.4 ANSWER:C
AquaRat_train
What type of map shows the elevation and features in an area?
[ "meteorological", "topographic", "gradient", "geographic" ]
B
Relief , or terrain, includes all the landforms of a region. A topographic map shows the height, or elevation , of features in an area. This includes mountains, craters, valleys, and rivers. For example, Figure below shows the San Francisco Peaks in northern Arizona. Features on the map include mountains, hills and lav...
SCiQ_train
Average acceleration is the rate of change of what?
[ "speed", "direction", "velocity", "displacement" ]
C
Average acceleration is the rate of change of velocity, or the change in velocity per unit time.
SCiQ_train
Which organelle is often compared to a post office, moving proteins and lipids to where they need to go?
[ "the golgi apparatus", "the cell wall", "the cytoplasm", "the nucleus" ]
A
The Golgi apparatus is a large organelle that sends proteins and lipids where they need to go. It’s like a post office. It receives molecules from the endoplasmic reticulum. It packages and labels the molecules. Then it sends them where they are needed. Some molecules are sent to different parts of the cell. Others are...
SCiQ_train
What gland is located at the base of the brain and secretes the hormone melatonin?
[ "thyroid", "thymus", "pituitary", "pineal" ]
D
The pineal gland is a tiny gland located at the base of the brain. It secretes the hormone melatonin. This hormone controls sleep-wake cycles and several other processes.
SCiQ_train
What are the preserved remains of animals, plants, and other organisms called?
[ "rocks", "basalt", "skulls", "fossils" ]
D
Fossils are the preserved remains of animals, plants, and other organisms from the distant past. Examples of fossils include bones, teeth, and impressions. By studying fossils, evidence for evolution is revealed. Paleontologists are scientists who study fossils to learn about life in the past. Fossils allow these scien...
SCiQ_train
Sterling silver is a combination of silver and copper. Which of the following is also a combination of two or more metals?
[ "aluminum.", "lead.", "gold.", "brass." ]
D
MMLU_train
Find the odd man out. 3, 9, 12, 15, 18, 29
[ "3", "1", "29", "9" ]
C
29 is an not multiple of 3 number. All other given numbers are multiples of 3 Answer : Option A
AquaRat_train
In order for a glider to fly, its weight must be opposed by
[ "lift.", "drag.", "gravity.", "friction." ]
A
MMLU_train
If a mixture is 1⁄2 alcohol by volume and 3⁄2 water by volume, what is the ratio of the volume of alcohol to the volume of water in this mixture?
[ "3⁄4", "7⁄4", "4⁄7", "3⁄7" ]
A
Should be a sub-600 level Q.. volume= {1/2}/{3/2}=1/3 C
AquaRat_train
What is the rate percent when the simple interest on Rs.800 amount to Rs.176 in 4 Years?
[ "9%", "8%", "5%", "5.5%" ]
D
176 = (180*4*R)/100 R = 5.5% Answer: E
AquaRat_train
What are the last two digits of (301*402*502*604*646*547*448*349)^2
[ "56", "36", "76", "96" ]
A
((301*402*502*604*646)*(547*448*349))^2 If you observe above digits, last digit are: 1,2,2,4,6,7,8,9; 3&5 are missing; so I have rearranged them so that multiplication will be easy for me as initial 4 digits have last two digits as 01,02,02,04,46 and final three as 47*48*49. Solving for only last two digits and multipl...
AquaRat_train
Nitrogen and sulfur oxides form what type of rain?
[ "toxic rain", "heavy rain", "common rain", "acid rain" ]
D
Both nitrogen and sulfur oxides are toxic to humans. These compounds can cause lung diseases or make them worse. Nitrogen and sulfur oxides form acid rain, which is described in the next concept.
SCiQ_train
A train leaves Mumabai at 9 am at a speed of 40 kmph. After one hour, another train leaves Mumbai in the same direction as that of the first train at a speed of 50 kmph. When and at what distance from Mumbai do the two trains meet?
[ "268", "276", "200", "271" ]
C
When the second train leaves Mumbai the first train covers 40 * 1 = 40 km So, the distance between first train and second train is 40 km at 10.00am Time taken by the trains to meet = Distance / relative speed = 40 / (50 -40) = 4 hours So, the two trains meet at 2 p.m. The two trains meet 4 * 50 = 200 km away from Mumba...
AquaRat_train
Frogs and salamanders compete with each other for insects. Both frogs and salamanders catch flying insects with their tongues. Which feature would most likely help both animals compete for flying insects?
[ "sticky tongues", "bright tongues", "thick tongues", "short tongues" ]
A
MMLU_train
The cost of type 1 rice is Rs 15 per Kg and type 2 rice is Rs 20 per Kg. If both type1 and type 2 are mixed in the ratio of 2:3,then the price per Kg of the mixed variety of rice is?
[ "18", "30", "25", "20" ]
A
Let the price of the mixed variety be Rs x per Kg. Cost of 1 Kg of type 1 rice Rs 15 Cost of 1 Kg of type 2 rice Rs 20 Mean Price Rs x 20-x x-15 (20-x) /( x-15) = 2/3 => 60-3x = 2x-30 5x = 90=>x=18. ANSWER B
AquaRat_train
In the next five years, STEM (science, technology, engineering and mathematics) jobs are projected to grow twice as quickly as jobs in all other fields according to the U.S. Bureau of Statistics. While all jobs are expected to grow by 10.4 percent, STEM jobs are expected to increase by 21.4 percent. By this measure, fu...
[ "STEM jobs will be easily available in the future", "boys have more advantages over girls in STEM", "the number of STEM students is rapidly declining", "America will face serious shortage of STEM talents" ]
D
MMLU_train
What compound is formed when the soft putty-like metal sodium (Na) reacts with the green-colored poisonous gas chlorine (Cl_{2})?
[ "sugar", "table salt", "sulfuric acid", "sodium hydroxide" ]
B
MMLU_train
What makes up the central nervous system?
[ "spine and lungs", "heart and lungs", "brain and heart", "brain and spinal cord" ]
D
The central nervous system is made up of the brain and the spinal cord.
SCiQ_train
In how many different ways can the letters of the word DETAIL be arranged in such a way that the vowels occupy only the odd positions?
[ "32", "120", "48", "None of these" ]
D
3 vowels can be arranged in three odd places in 3! ways. Similarly, 3 consonants can be arranged in three even places in 3! ways. Hence, the total number of words in which vowels occupy odd positions = 3! × 3! = 6 × 6 = 36 ways. Answer E
AquaRat_train
Nuclear reactors use fission reactions to vaporize water, producing steam to drive a turbine and generate what?
[ "electricity", "fuel", "light", "oil" ]
A
Nuclear reactors use fission reactions to vaporize water. The resulting steam is used to drive a turbine, which generates electricity.
SCiQ_train
The measures of the 2 acute angles of a triangle are in the ratio of 3 : 7. What arethe measures of the 2 angles?
[ "20°", "70°", "63°", "110°" ]
C
If the ratio of the two angles is 3:7, then the measures of two angles can be written as 3x and 7x. Also the two acute angles of a triangle is equal to 90°. Hence 3x + 7x = 90 10x = 90 x = 9 Measures of the two acute angles are 3x = 3 × 9 = 27° 7x = 7 × 9 = 63° D
AquaRat_train
The average of thirteen numbers is 9. The average of first six numbers is 5 and the average of last six numbers is 7. What is the middle number?
[ "47", "44", "45", "37" ]
C
The total of thirteen numbers = 13X9 = 117 The total of first 6 and last 6 numbers is = 6 X 5+6 X 7 = 72 So, the middle number is (117 - 72 ) = 45 B
AquaRat_train
What kind of organism causes the often fatal lung disease tuberculosis?
[ "bacteria", "algae", "pathogens", "virus" ]
A
SCiQ_train
What is most of earth's surface covered with?
[ "sand", "insects", "water", "silicon" ]
C
The outer planets in the solar system are giant balls of swirling gas. Earth and the other inner planets are relatively small, dense, and rocky. Most of Earth’s surface is covered with water. As far as we know, Earth is also the only planet that has liquid water. Earth's atmosphere has oxygen. The water and oxygen are ...
SCiQ_train
Functional groups are groups of atoms that occur within molecules and confer specific chemical properties to those molecules. they are found along the “carbon backbone” of what?
[ "functional molecules", "micromolecules", "inorganic molecules", "macromolecules" ]
D
Functional Groups Functional groups are groups of atoms that occur within molecules and confer specific chemical properties to those molecules. They are found along the “carbon backbone” of macromolecules. This carbon backbone is formed by chains and/or rings of carbon atoms with the occasional substitution of an eleme...
SCiQ_train
As every computer owner knows, when their machines run a complex program they get pretty hot. In fact, cooling the processors can be expensive, especially when you're dealing with huge banks of computer servers. But what if that energy could heat private homes? A Dutch energy firm aims to do just that. Data centers of ...
[ "A New Kind of Data Servers", "Data Servers Could Heat Private Homes", "How to Heat the Private Homes with Computers", "An Alternative Heating Source" ]
B
MMLU_train
In a meeting of 3 representatives from each of 5 different companies, each person shook hands with every person not from his or her own company. If the representatives did not shake hands with people from their own company, how many handshakes took place?
[ "100", "125", "90", "110" ]
C
In fact, all 15 people will shake hands with 12 others. So, it SEEMS like the TOTAL number of handshakes = (15)(12) HOWEVER, we need to keep in mind that we have counted each handshake TWICE. To account for this DUPLICATION, we must divide (15)(12) by 2. So, the TOTAL # of handshakes = (15)(12)/2 = 90 Answer : D
AquaRat_train
The average of 6 observations is 12. A new seventh observation is included and the new average is decreased by 1. The seventh observation is :
[ "1", "3", "8", "5" ]
D
Explanation: Seventh observation = (7××11-6××12)=5 Correct Option: C
AquaRat_train
What substance are physical objects are made of?
[ "gravity", "friction", "matter", "energy" ]
C
To understand minerals, we must first understand matter. Matter is the substance that physical objects are made of.
SCiQ_train
Bob Smith is a little boy. On the first day at school, his teacher, Ms. Green, teaches him three words--you, he and I. Then the teacher says, "I am your teacher. You are my student. He is your classmate." When school is over, Bob goes home. His mother asks him,"What does your teacher teach you today?"Bob says with a sm...
[ "Ms. Green", "Mr. Smith", "Mrs. Smith", "Mrs. Green" ]
C
MMLU_train
A pupil's marks were wrongly entered as 73 instead of 65. Due to the average marks for the class got increased by half. The number of pupils in the class is?
[ "16", "18", "82", "29" ]
A
Let there be x pupils in the class. Total increase in marks = (x * 1/2) = x/2 x/2 = (73 - 65) => x/2 = 8 => x = 16. Answer: C
AquaRat_train
Very large stars eventually become what extremely dense space regions, which are so dense that no light can escape from them?
[ "worm holes", "dark matter", "moons", "black holes" ]
D
The largest-mass stars become black holes . These extremely large stars end their life in the same way as a medium-mass star in that they become a supernova. After the outer layers are blown away in the supernova, however, the core of the star shrinks down in volume but still has a huge mass. The density of this object...
SCiQ_train
Which best describes a proton?
[ "negatively charged and has a negligible mass", "negatively charged and part of the nucleus", "positively charged and part of the nucleus", "negatively charged and orbits the nucleus" ]
C
MMLU_train
The marks obtained by Vijay and Amith are in the ratio 2:5 and those obtained by Amith and Abhishek in the ratio of 3:2. The marks obtained by Vijay and Abhishek are in the ratio of?
[ "3:5", "6:5", "3:1", "3:2" ]
A
2:5 3:2 ------- 6:15:10 6:10 3:5 Answer: E
AquaRat_train
What occurs when muscle fibers get shorter?
[ "muscle diffusion", "muscle extension", "muscle tension", "muscle contraction" ]
D
Muscle contraction occurs when muscle fibers get shorter. Literally, the muscle fibers get smaller in size. To understand how this happens, you need to know more about the structure of muscle fibers.
SCiQ_train
A person puts a potato in some embers on the edge of a campfire and the potato gets hot. The embers are
[ "good for food", "a cool source", "meant to sleep", "a exothermic reaction" ]
D
MMLU_train
Nursing at prefix = st1 /BethIsraelHospitalproduces the best patient care possible. If we are to solve the nursing shortage, hospital administration and doctors everywhere would do well to follow Beth Israel's example. At Beth Israel each patient is assigned to primary nurse who visits at length with the patient and co...
[ "The doctor gets more active professional support from the primary nurse.", "Each patient is taken care of by a primary nurse day and night", "The primary nurse writes care plan for every patient", "The primary nurse keeps records of the patient's health conditions every day." ]
A
MMLU_train
2015.98 + 1275.087 – 175.98 × 0.95 + 988.09 = ?
[ "4055", "4404", "4004", "4044" ]
C
Explanation: = 2016 + 1275 – 275.98 × 1 + 988 = 2016 + 1275-275 + 988 = 4004 Answer: Option A
AquaRat_train
Which of the following describes how a microwave oven heats food?
[ "The oven's interior reflects heat onto the food.", "The oven's interior, like a lens, focuses heat onto the food.", "Water molecules in the food reflect energy from microwave radiation.", "Water molecules in the food absorb the energy of microwave radiation." ]
D
MMLU_train
120 +520 ÷ 5.00 = ?
[ "100", "120", "None", "520" ]
C
Answer Given expression = 120 +520 ÷ 5.00 = 120 + 104 = 224 Correct Option: E
AquaRat_train
A salt concentration of 32 percent is nearly ten times that of what abundant resource?
[ "oxygen", "seawater", "algae", "fresh water" ]
B
SCiQ_train
There is an old English saying.It tells us that we must go to bed early and get up early in the morning.Then we shall be healthy.We shall also be rich and clever.This is true.The body must have enough sleep to be healthy.Children of young age should have ten hours' sleep every night.Children who do not have enough slee...
[ "Yes, it does.", "No, it doesn't.", "No, it does.", "Yes, it deosn't." ]
A
MMLU_train
To what degree can a computer achieve intelligence?The answer to this question may lie in a newly-developed US computer program called Smarter Child and the Internet. If you ran into Smarter Child online, you would be surprised at this kid's huge memory. It can recite many facts. For example, Smarter Child knows every ...
[ "tell us how to spell a difficult word", "tell us how the American government is run", "provide us with a famous poem by Shakespeare", "learn the ability to tell right behaviors from wrong ones." ]
D
MMLU_train
What is a disadvantage of using moving water to produce electricity?
[ "Power is produced inexpensively.", "Air pollution is produced.", "Oil spills may occur.", "The local ecosystem may be disrupted." ]
D
MMLU_train
What are atoms or groups of atoms called which carry and electrical charge?
[ "ions", "molecules", "protons", "electrons" ]
A
Atoms or groups of atoms that carry an overall electrical charge are referred to as ions. Cations can be formed when a neutral species loses electrons, while anions are formed when a neutral species gains electrons.
SCiQ_train
What is a shortage of water that causes the soil to dry from the surface down called?
[ "tidal wave", "drought", "overflowage", "flood" ]
B
SCiQ_train
Gravitational force never affects
[ "balloons", "stars", "sunshine", "air" ]
C
MMLU_train
In a city where all streets run east-to-west, all avenues run north-to-south, and all intersections are right angles as shown below, Jenn needs to walk from the corner of 1st Street and 1st Avenue to the corner of 6th Street and 3rd Avenue. If her friend Amanda is sitting on a bench on 4th Street halfway between 1st an...
[ "1/3", "1/7", "1/42", "1/2" ]
B
All routes between (1,1) to (3,6) = 7!/(2!*5!) = 21 Routes which pass 4th st. between 1st and 2nd avenue = routs between (1,1) to (1,4) * routs between (2,4) to (3,6) = 1 * (3!/(2!*1!)) = 3 the probability that Jenn will walk down 4th St. past Amanda= 3 / 21 = 1 / 7 C is correct.
AquaRat_train
Length of a rectangular plot is 26 mtr more than its breadth. If the cost of fencin gthe plot at 26.50 per meter is Rs. 5300, what is the length of the plot in mtr?
[ "73 m", "93 m", "63 m", "83 m" ]
C
Let breadth = x metres. Then, length = (x + 26) metres. Perimeter = 5300 m = 200 m. 26.50 2[(x + 26) + x] = 200 2x + 26 = 100 2x = 74 x = 37 Hence, length = x + 26 = 63 m B
AquaRat_train
What do you call the daily changes in the level of ocean water?
[ "waves", "currents", "shores", "tides" ]
D
Tides are daily changes in the level of ocean water. They occur all around the globe. High tides occur when the water reaches its highest level in a day. Low tides occur when the water reaches its lowest level in a day. Tides keep cycling from high to low and back again. In most places the water level rises and falls t...
SCiQ_train
Astronomers have wondered if the universe is expanding fast enough to escape the pull of what?
[ "Coreolis effect", "gravity", "light", "kinetic energy" ]
B
We know that the Universe is expanding. Astronomers have wondered if it is expanding fast enough to escape the pull of gravity. Would the Universe just expand forever? If it could not escape the pull of gravity, would it someday start to contract? This means it would eventually get squeezed together in a big crunch. Th...
SCiQ_train
What type of learning is done from past experiences and reasoning?
[ "insight learning", "consequence learning", "rational learning", "transformation learning" ]
A
Insight learning is learning from past experiences and reasoning. It usually involves coming up with new ways to solve problems. Insight learning generally happens quickly. An animal has a sudden flash of insight. Insight learning requires relatively great intelligence. Human beings use insight learning more than any o...
SCiQ_train
It rained on a hot summer afternoon and a puddle formed. After several hours, the puddle was gone. Which two processes made the puddle form and then disappear?
[ "precipitation followed by evaporation", "deposition followed by evaporation", "precipitation followed by runoff", "deposition followed by runoff" ]
A
MMLU_train
Skittles left in snow become
[ "hot", "mushy", "hard", "soft" ]
C
MMLU_train
A starts business with Rs.3500 and after 8 months, B joins with A as his partner. After a year, the profit is divided in the ratio 2 : 3. What is B’s contribution in the Capital ?
[ "23788", "15750", "2811", "24887" ]
B
Explanation: A invested Rs.3500 for 12 months. Let B joined with investment x. And he invested for 12 - 8 = 4 months. So there profit ratio = (3500 × 12) : (4x) = 2 : 3 ⇒ x = 15750 Answer: D
AquaRat_train
Rajani has to read a book of 445 pages. She has already read the first 157 pages of the book and if she reads 24 pages of the book everyday then how long will she take now to complete the book?
[ "25 days", "20 days", "46 days", "None of these" ]
D
Remaining pages to read = 445 – 157 = 288 ∴ Reqd. number of days = 288⁄24 = 12 Answer E
AquaRat_train
As Michael put each finger on the white laces of the football like his dad had shown him he thought about his school trip to the zoo tomorrow. He could not wait to get to the zoo and most of all could not wait to see his favorite animal, the lion. Aiming the football at the tire swing that hung in his back yard, he rem...
[ "Joe", "Ryan", "Nick", "his teacher" ]
B
MMLU_train
In the figure shown, the outer square has an area of 9 cm2, the inner square has an area of 1 cm2, and the four rectangles are identical. What is the perimeter of one of the four identical rectangles?
[ "6 cm", "7 cm", "10 cm", "9 cm" ]
A
The outer square has an area of 9 cm2, so the sides of this outer square have length 3 cm (since 3 3 = 9), and thus PN = 3 cm. The inner square has an area of 1 cm2, so the sides of this inner square have length 1 cm (since 1 1 = 1), and thus MR = 1 cm. Since PN = 3 cm, then PS + SN = 3 cm and so QR + SN = 3 cm (since ...
AquaRat_train
What type of vertebrates are birds?
[ "epidermal tetrapod", "endothermic tetrapod", "invertebrates", "exothermic" ]
B
Birds are endothermic tetrapod vertebrates. They are bipedal, which means they walk on two legs. Birds also lay amniotic eggs, and the eggs have hard, calcium carbonate shells. Although birds are the most recent class of vertebrates to evolve, they are now the most numerous vertebrates on Earth. Why have birds been so ...
SCiQ_train
The ions in ionic compounds are arranged in rigid three-dimensional patterns called what?
[ "crystal lattices", "core lattices", "lattice groups", "pattern lattices" ]
A
The ions in ionic compounds are arranged in rigid three-dimensional patterns called crystal lattices. The crystal lattice that is formed is a characteristic property of a given compound.
SCiQ_train
What layer high in the atmosphere protects living things from most of the sun’s harmful uv rays?
[ "Mesosphere", "stratosphere", "ozone layer", "troposphere" ]
C
Earth’s atmosphere is vital to life. The atmosphere provides the oxygen and carbon dioxide living things need for photosynthesis and respiration. Living things also need the ozone layer high in the atmosphere. Upper level ozone protects them from most of the Sun’s harmful UV rays.
SCiQ_train
There is a five digit code consist of letters and digit. the code can have one digit from 1,2,3 and any four letters from A,b,c,d,e. first and last code must be a letter and all letters can be repeated. How many combinations can be possible?
[ "5625", "3840", "11520", "12520" ]
A
since repetitions are allowed so there are 5 ways to choose the letters for the first slot, and five ways to choose for last slot that can be like:- 5 x _ x _ x _ x 5 you still have to choose 1 digit and 2 letters between. For the letters, again, repetitions are allowed so each slot can be filled in 5 ways. For digit, ...
AquaRat_train
A pharmaceutical company received $3 million in royalties on the first $30 million in sales of and then $9 million in royalties on the next $120 million in sales. By approximately what percentage did the ratio of royalties to sales decrease from the first $30 million in sales to the next $120 million in sales?
[ "25%", "15%", "8%", "56%" ]
A
(9/120)/(3/30) = 3/4 = 75% it means that 9/120 represents only 75%. Therefore a decrease of 25%. Answer C
AquaRat_train
In a race where 16 cars are running, the chance that car X will win is 1/4, that Y will win is 1/12 and that Z will win is 1/7. Assuming that a dead heat is impossible, find the chance that one of them will win.
[ "11/21", "10/21", "1/140", "27/410" ]
B
Required probability = P(X) + P(Y) + P(Z) (all the events are mutually exclusive). = 1/4 + 1/12 + 1/7 = 10/21 ANSWER:B
AquaRat_train
A goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the goods train?
[ "260 m", "210 m", "240 m", "270 m" ]
D
Speed =72x(5/18) m/sec =20m/sec Time = 26 sec. Let the length of the train be x metres. (x+250)/26 =20 x + 250 = 520 x = 270. answer :E
AquaRat_train
All plant cells are capable of taking up water. Even dead ones do to a certain degree. Absorption of water by dead cell walls makes wood become larger. In common land plants, the living cells of roots take upmost of the water. Land plants without roots do exist, however. Those greenish-yellow lichens you see on rocks i...
[ "evolutionary cycles", "heights and depths", "time", "kinds" ]
C
MMLU_train
Plants supply, ultimately, most of the food eaten by terrestrial animals, along with what gas?
[ "nitrogen", "carbon dioxide", "hydrogen", "oxygen" ]
D
SCiQ_train
Find the odd man out. 18, 27, 36, 38, 45
[ "27", "45", "38", "36" ]
C
All numbers except 38 are multiples of 9 Answer is E
AquaRat_train
We live on the Earth. It's our home. But how much do you know about it? The Earth is like a huge ball. Like the other seven planets, the Earth is running around the Sun. It's the third nearest planet to the Sun. It takes the Earth about 365 days to run around the Sun. At the same time, the Earth is going around itself....
[ "goes around the Sun", "goes around itself", "faces the Sun", "is away from the Sun" ]
D
MMLU_train
Can is filled with a mixture of water & milk in the ratio of 3 : 5. Find the quantity of mixture to be drawn off and replaced with water, in order to get the mixture ashalf milk and 1/2water.
[ "1/5", "2/5", "3/7", "2/3" ]
A
Correct option : (c) A container contains milk and water in the ratio of 3 : 5. This means that the vessel contains 8 litres of mixture. Assume that x litres of this mixture is replaced with water. From the mixture containing water and milk of 3 : 5, x quantity of mixture is withdrawn and is replaced by water of the sa...
AquaRat_train
The least number which should be added to 2497 so that the sum is exactly divisible by 5,6,4 and 3 is :
[ "3", "43", "13", "23" ]
D
Solution L.C.M. of 5,6,4 and 3 = 60. on dividing 2497 by 60, the remainder is 37. ∴ Number to be added = (60-37) = 23. Answer C
AquaRat_train
(1)Secretary. Part time. 20 hours a week. Busy doctor's office. Experience preferred. Good typing. Call 555-2438. (2)BABY SITTER. 3 to 6 weekday afternoons. I will take you home. $5.00 an hour. Call 555-5593. (3)Guitar lessons. Your home or mine. Experienced musician. Master's degree in music. Call Louise 555-6131. (4)...
[ "4", "3", "2", "5" ]
B
MMLU_train
What is the amount of energy required to begin a chemical reaction known as?
[ "reaction energy", "positive energy", "decomposition energy", "activation energy" ]
D
All chemical reactions need energy to get started. Even reactions that release energy need a boost of energy in order to begin. The energy needed to start a chemical reaction is called activation energy . Activation energy is like the push a child needs to start going down a playground slide. The push gives the child e...
SCiQ_train
Metals, fossil fuels, and water are all examples of what type of resource?
[ "natural resources", "recyclables", "ores", "renewable resources" ]
A
A natural resource is anything in nature that humans need. Metals and fossil fuels are natural resources. But so are water, sunlight, soil, and wind. Even living things are natural resources.
SCiQ_train
Smoking increases the risk of cancer from what radioactive gas that can also be detected with a test kit for your home?
[ "arsenic", "carbon dioxide", "radon", "carbon monoxide" ]
C
Radon is also radioactive and can easily be inhaled into the lungs. Over time, this internal radon exposure can lead to the development of lung cancer. The incidence of lung cancer in smokers exposed to radon is much higher than that in non-smokers exposed to radon since smoking has already produced some lung damage, a...
SCiQ_train
A hostel had provisions for 250 men for 40 days. If 50 men left the hostel, how long will the food last at the same rate?
[ "40", "65", "50", "30" ]
C
A hostel had provisions for 250 men for 40 days If 50 men leaves the hostel, remaining men = 250 - 50 = 200 We need to find out how long the food will last for these 200 men. Let the required number of days = x days More men, Less days (Indirect Proportion) (men) 250 : 200 :: x : 40 250×40=200x 5×40=4x x=5×10=50 ANSWER...
AquaRat_train
Both alpha and beta decay change the number of what in an atom's nucleus?
[ "electrons", "Gamma decay", "protons", "neutrons" ]
C
Both alpha and beta decay change the number of protons in an atom’s nucleus, thereby changing the atom to a different element. In alpha decay, the nucleus loses two protons. In beta decay, the nucleus either loses a proton or gains a proton. In gamma decay, no change in proton number occurs, so the atom does not become...
SCiQ_train
Bacteria may divide several what an hour?
[ "times", "days", "cells", "hosts" ]
A
Asexual reproduction can be very rapid. This is an advantage for many organisms. It allows these organisms to crowd out other organisms that reproduce more slowly. Bacteria, for example, may divide several times per hour. Under ideal conditions, 100 bacteria can divide to produce millions of bacterial cells in just a f...
SCiQ_train
The maximum number of student amoung them 1802 pens and 1203 pencils can be distributed in such a way that each student gets the same number of pens and same number of pencils is :
[ "1", "11", "19", "10" ]
A
Solution Required number of student = H.C.F of 1802 and 1203 = 1. Answer A
AquaRat_train
What is the largest planet in our solar system?
[ "mars", "earth", "jupiter", "uranus" ]
C
Jupiter is the largest planet in our solar system. Jupiter is named for the king of the gods in Roman mythology. The Romans named the largest planet for their most important god. They followed the tradition of the Greeks, who had similarly named the planet Zeus. The Romans built a temple to Jupiter on the hill.
SCiQ_train
A sound is heard when you pluck a string on a guitar. What will happen to the sound if the same string is plucked harder?
[ "The volume will stay the same, and the pitch will be higher.", "The pitch will stay the same, and the volume will be higher.", "Both the pitch and the volume will be higher.", "Both the pitch and the volume will stay the same." ]
B
MMLU_train
A certain company has 18 equally qualified applicants for 4 open positions. How many different groups of 4 applicants can be chosen by the company to fill the positions if the order of selection does not matter?
[ "18", "72", "3,060", "180" ]
C
This is a combination question since order is not important. n! k! (n-k!) = 18! 4! 14! = 18 * 17 * 16 * 15 * 14! 4 * 3 * 2 * 1 * 14! = 3060 (Ans: E)
AquaRat_train
There are two buildings P and Q. If 15 persons are sent from P to Q, then the number of persons in each building is the same. If 20 persons are sent from Q to P, then the number of persons in P is double the number of persons in Q. How many persons are there in building P?
[ "110", "140", "120", "100" ]
C
Let the number of persons in building P = p and the number of persons in building Q = q If 15 persons are sent from P to Q, then the number of persons in each building is the same => p-15 = q+15 => p - q = 30 ----(Equation 1) If 20 persons are sent from Q to P, then the number of persons in P is double the number of pe...
AquaRat_train
A train travels 325 km in 3.5 hours and 470 km in 4 hours. Find the average speed of train ?
[ "106 kmph", "126 kmph", "186 kmph", "116 kmph" ]
A
Explanation: As we know that Speed = Distance / Time for average speed = Total Distance / Total Time Taken Thus, Total Distance = 325 + 470 = 795 km Thus, Total Speed = 7.5 hrs Average Speed = 795/7.5 => 106 kmph. Answer: B
AquaRat_train