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math_qa
mathqa_03_02640
a merchant has selected two items to be placed on sale , one of which currently sells for 30 percent less than the other . if he wishes to raise the price of the cheaper item so that the two items are equally priced , by what percentage must he raise the price of the less expensive item ?
[ "22 %", "30 %", "42 6 / 7 %", "70 %" ]
C
sciq
sciq_01_00908
During asexual reproduction, fungi produce haploid spores by what process involving a haploid parent cell?
[ "evaporation", "osmosis", "mitosis", "divergence" ]
C
sciq
sciq_01_01269
What structure consists of an outer layer of cells called the trophoblast and an inner cell mass called the embryoblast?
[ "cell wall", "nucleus", "blastocyst", "cytoplasm" ]
C
sciq
sciq_01_09075
What are scientists able to determine about stars using emission and absorption spectra?
[ "composition", "size", "shape", "distance" ]
A
ARC-Easy
arc_04_00634
What takes place as a light wave enters a denser medium?
[ "it is reflected", "it is absorbed", "it is refracted", "it is compressed" ]
C
sciq
sciq_01_06951
What are the properties of solutions called that depend only on the concentration of dissolved particles and not on their identity?
[ "platyhelminth properties", "platyhelminth properties", "colligative properties", "platyhelminth properties​" ]
C
ARC-Easy
arc_04_00129
Which method below would be the best way to determine if an egg, plastic foam, a piece of wood, or a candle would float on water?
[ "observing each object in water", "measuring the size of each object", "calculating the weight of the objects", "comparing the shapes of the objects" ]
A
math_qa
mathqa_03_02596
if a radio is purchased for rs 490 and sold for rs 465.50 find the loss % ?
[ "5 %", "4 %", "6 %", "8 %" ]
A
sciq
sciq_01_09111
What is the term for a formula that shows the elements in a compound in their lowest whole-number ratio?
[ "measured formula", "empirical formula", "intrinsic formula", "Dwarf Formula" ]
B
math_qa
mathqa_03_00498
at what rate percent per annum will a sum of money double in 5 years .
[ "20.0 %", "13.5 %", "11.5 %", "14.5 %" ]
A
math_qa
mathqa_03_05999
what is the least number that should be added to 1077 , so the sum of the number is divisible by 23 ?
[ "1", "2", "3", "4" ]
D
math_qa
mathqa_03_00311
what is the sum of natural numbers between 50 and 100
[ "4800", "4860", "3825", "5500" ]
C
sciq
sciq_01_02022
In physics, what do you call devices that make work easier?
[ "levers", "machines", "circuits", "tools" ]
B
openbookqa
obqa_02_02438
Living things which require warmth likely also require
[ "beads", "tea", "presents", "kidneys" ]
D
sciq
sciq_01_00330
What are the 2 primary hosts of ebola in central africa?
[ "lions and elephants", "apes and bats", "hyenas and apes", "apes and hippos" ]
B
ARC-Easy
arc_04_01826
How do most fish get the oxygen they need to survive?
[ "They take in water and break it down into hydrogen and oxygen.", "Using their gills, they take in oxygen that is dissolved in water.", "They get their oxygen from the food they eat.", "They come to the surface every few minutes to breathe air into their lungs." ]
B
math_qa
mathqa_03_04864
a new tower has just been built at the verbico military hospital ; the number of beds available for patients at the hospital is now 4 times the number available before the new tower was built . currently , 1 / 3 of the hospital ' s original beds , as well as 1 / 5 of the beds in the new tower , are occupied . for the p...
[ "11 / 30", "29 / 60", "17 / 30", "31 / 45" ]
D
math_qa
mathqa_03_04092
the ratio of income of anand to that of balu is 5 : 4 and the expenditure of anand to that of balu is 3 : 2 . if at the end of the year , each saves rs , 800 , the income of anand is :
[ "rs 1600", "rs 1800", "rs 2000", "rs 2200" ]
C
sciq
sciq_01_03725
How many forces do objects on earth have acting on them at all times?
[ "three", "two", "ten", "four" ]
B
math_qa
mathqa_03_05692
the average age of 28 students in a group is 16 years . when teacher â € ™ s age is included to it , the average increases by one . what is the teacher â € ™ s age in years ?
[ "45", "36", "41", "51" ]
A
sciq
sciq_01_10853
Why does a large log burn relatively slowly compared to the same mass of wood in the form of small twigs?
[ "larger surface area", "smaller blade area", "larger surface area", "smaller surface area" ]
D
math_qa
mathqa_03_03280
a and b can do a piece of work in 4 days . with the help of c they finish the work in 3 days . c alone can do that piece of work in ?
[ "4 days", "21 days", "13 days", "12 days" ]
D
openbookqa
obqa_02_02810
Classes and categories are both part of
[ "distraction", "confusion", "control", "designating" ]
D
math_qa
mathqa_03_04175
if the number is decreased by 5 and divided by 7 the result is 7 . what would be the result if 6 is subtracted and divided by 8 ?
[ "4", "6", "8", "5" ]
B
ARC-Challenge
arc_04_02435
Kerry made a simple flashlight. She recorded the following statements in her lab book. Which statement is an inference?
[ "The wire was 35 cm long.", "The flashlight contained a battery.", "The plastic switch was better than the metal switch.", "The bulb was lit for 20 minutes before it burned out." ]
C
sciq
sciq_01_06598
What is the most common type of organic compound?
[ "proteins", "vitamins", "fats", "carbohydrates" ]
D
openbookqa
obqa_02_01443
Jerry put some salt into some tap water and stirred it up. What has Jerry made?
[ "a solution", "a battery", "sea water", "lemonade" ]
A
sciq
sciq_01_10392
Metabolism includes both anabolic and which other reaction?
[ "organic", "catabolic", "biogenic", "enzymatic" ]
B
openbookqa
obqa_02_03749
birds lay
[ "rocks", "clouds", "trees", "calcium life pods" ]
D
openbookqa
obqa_02_00651
which one of these would be most nourished?
[ "a person who eats once daily", "a person fasting all day", "a person who only drinks water", "a person who feeds thrice daily" ]
D
openbookqa
obqa_02_00116
Corn can sometimes
[ "be grown in arctic environments", "be used as kindling", "fuel a steam locomotive", "fuel an economy car" ]
D
sciq
sciq_01_02402
Groundwater dissolves minerals and carries the ions in a what?
[ "mixture", "transition", "solution", "jet stream" ]
C
sciq
sciq_01_06490
Conotoxins released by certain marine snails can bring about paralysis in humans, indicating that this toxin attacks what system?
[ "cardiovascular", "cerebral", "neurological", "circulatory" ]
C
sciq
sciq_01_07729
Moving electrons have a form of kinetic energy called what?
[ "potential energy", "electrical energy", "electromagnetism", "deformed energy" ]
B
math_qa
mathqa_03_02937
if the cost price of 65 chocolates is equal to the selling price of 50 chocolates , the gain percent is :
[ "35 %", "10 %", "20 %", "30 %" ]
D
openbookqa
obqa_02_00946
an example of converting potential energy to kinetic energy is
[ "a resting bird", "a still rock", "our own sun", "cars spinning tires" ]
D
openbookqa
obqa_02_04893
As altitude increases, the air temperature will do what?
[ "rise", "go up", "nosedive", "elevate" ]
C
sciq
sciq_01_07143
What makes the halogen group so diverse?
[ "contains alloys", "bonds easily", "three different states of matter", "a single state of matter" ]
C
math_qa
mathqa_03_03893
in measuring the sides of a rectangle , one side is taken 6 % in excess , and the other 5 % in deficit . find the error percent in the area calculated from these measurements .
[ "0.11 %", "0.7 %", "0.4 %", "0.6 %" ]
B
sciq
sciq_01_10892
What property does liquid display when it interacts with glass?
[ "property of oxidize", "property of adhesion", "property of repulsion", "property of diffusion" ]
B
ARC-Challenge
arc_04_02968
Compared to similar-sized gasoline-powered vehicles, electric-gasoline-hybrid vehicles are primarily designed to
[ "produce more horsepower.", "eliminate greenhouse gas emissions.", "operate independently of fossil fuels.", "provide better gas mileage." ]
D
math_qa
mathqa_03_01470
two different primes may be said torhymearound an integer if they are the same distance from the integer on the number line . for instance , 3 and 7 rhyme around 5 . what integer e between 1 and 20 , inclusive , has the greatest number of distinct rhyming primes around it ?
[ "12", "15", "17", "e = 18" ]
D
sciq
sciq_01_09382
When a liquid is heated, molecules with enough kinetic energy escape the liquid and become what?
[ "solid", "vapor", "atoms", "invisible" ]
B
sciq
sciq_01_06307
The larger surface area of leaves allows them to capture more what?
[ "chlorophyll", "molecules", "sunlight", "pollen" ]
C
openbookqa
obqa_02_04369
Air is blowing a ball equally from east and west, the ball will do what?
[ "Move east", "Move west", "Move north", "Move nowhere" ]
D
math_qa
mathqa_03_00214
what is the cp of rs 100 stock at 5 discount , with 1 / 5 % brokerage ?
[ "96.9", "96.3", "95.2", "96.7" ]
C
sciq
sciq_01_10968
What term is used to describe an immunity that occurs after exposure to an antigen either from a pathogen or a vaccination?
[ "herd immunity", "autoimmunity", "variation immunity", "adaptive immunity" ]
D
math_qa
mathqa_03_05595
a grocer is storing soap boxes in cartons that measure 25 inches by 42 inches by 60 inches . if the measurement of each soap box is 7 inches by 12 inches by 5 inches , then what is the maximum number of soap boxes that can be placed in each carton ?
[ "210", "150", "280", "300" ]
B
math_qa
mathqa_03_02830
a departmental store has 9 managers and 18 associates . the 9 managers have an average salary of $ 1300 . the 18 associates have an average salary of $ 12000 . what is the average salary for the departmental store ?
[ "$ 3556.25", "$ 3988.89", "$ 3836.56", "$ 3745.56" ]
B
math_qa
mathqa_03_00436
a started a business with an investment of rs . 70000 and after 6 months b joined him investing rs . 120000 . if the profit at the end of a year is rs . 26000 , then the share of a is ?
[ "s . 14028", "s . 14000", "s . 14003", "s . 14029" ]
B
openbookqa
obqa_02_00539
Tsunamis
[ "have little impact on the environment", "can be easily halted", "can rearrange coastal shorelines", "can encourage economic growth" ]
C
sciq
sciq_01_02060
The rate of flow of charge in an electrical circuit is known as what?
[ "velocity", "current", "voltage", "output" ]
B
ARC-Easy
arc_04_00899
Which of the following has the greatest effect on the ability of soil to hold water?
[ "the age of the soil particles", "the size of the soil particles", "the color of the soil particles", "the luster of the soil particles" ]
B
sciq
sciq_01_00853
Continuous-flow reactors are chemical reaction vessels in which the what are mixed and allowed to react as they flow along a tube?
[ "propellants", "reactives", "reactants", "generators" ]
C
ARC-Easy
arc_04_01977
If an environment becomes warmer and drier, the change that would most likely help a species adapt would be an increase in its
[ "amount of body fat.", "amount of body hair.", "ability to climb trees.", "ability to store water." ]
D
sciq
sciq_01_05833
What is the smallest class of elements?
[ "noble gases", "halogens", "metalloids", "synthetics" ]
C
math_qa
mathqa_03_02848
a man can row his boat with the stream at 16 km / h and against the stream in 4 km / h . the man ' s rate is ?
[ "1 kmph", "3 kmph", "6 kmph", "7 kmph" ]
C
sciq
sciq_01_00367
During photosynthesis, what is energy from the sun converted to after entering a plant?
[ "Proteins", "glucose", "chloride", "Carbon" ]
B
openbookqa
obqa_02_04788
To replenish the shade in a city that had been provided by trees that were felled by a storm:
[ "grow gills and live on a raft", "use a large lawn mower", "get out your weed whacker", "introduce replacement timber items" ]
D
sciq
sciq_01_01217
What do vertebrates have which invertebrates do not?
[ "fangs", "appendages", "tails", "backbones" ]
D
sciq
sciq_01_05030
Besides the concentration of dissolve oxygen and nutrients in the water, what other factor limits aquatic organisms?
[ "availability of sunlight", "temperature", "rainfall", "lake size" ]
A
openbookqa
obqa_02_04442
As the earth glides from winter into spring you will witness
[ "leaves growing", "blizzards", "bears starting hibernation", "leaves turning orange" ]
A
sciq
sciq_01_10947
Parasitic fungi often cause illness and may eventually do what to their hosts?
[ "mutate them", "become them", "reproduce with them", "kill them" ]
D
openbookqa
obqa_02_04272
Avoiding fossil fuel usage is an example of what?
[ "keeping natural", "destroying", "eliminating", "burning" ]
A
sciq
sciq_01_11095
What cause rabies, measles, diarrheal diseases, hepatitis, polio, and cold sores?
[ "viruses", "parasites", "bacteria", "contaminants" ]
A
openbookqa
obqa_02_02973
High can be visually represented by
[ "valleys", "mountains", "basins", "deep sea" ]
B
math_qa
mathqa_03_00958
if 0.6 : x : : 5 : 8 , then x is equal to :
[ "a", "b", "c", "d" ]
A
sciq
sciq_01_07867
What disease, caused by vitamin c deficiency, causes bleeding gums, nosebleeds, and other symptoms?
[ "dehydration", "scurvy", "rickets", "leukemia" ]
B
sciq
sciq_01_02826
What is the name of the spacecraft that has performed the closest flyby of uranus?
[ "Mercury 7", "Zodiac 4", "voyager 2", "centaur 2" ]
C
openbookqa
obqa_02_03486
as the amount of polluting gasses in the atmosphere increases , what will also increase in the atmosphere?
[ "reflections", "humidity", "depth", "hotness" ]
D
sciq
sciq_01_03086
The conservation of momentum principle can be applied to systems as different as a comet striking earth and a gas containing huge numbers of atoms and these?
[ "particles", "molecules", "ions", "protons" ]
B
sciq
sciq_01_07740
What is common in muscles that have become exhausted by use?
[ "clumps acid fermentation", "lactic acid fermentation", "Blood Acid Fermentation", "vibration acid fermentation" ]
B
math_qa
mathqa_03_05417
calculate how long it will take a swimmer to swim a distance of 3 km against the current of a river which flows at 1.7 km / hr , given that he can swim in still water at 3 km / h
[ "2.31", "9.31", "1.31", "4.31" ]
A
sciq
sciq_01_07058
What is the process whereby excess water and waste is removed from the body?
[ "filtration", "diffusion", "exhalation", "excretion" ]
D
math_qa
mathqa_03_00810
boy sells a book for rs . 800 he gets a loss of 20 % , to gain 10 % , what should be the sp ?
[ "1100", "450", "550", "590" ]
A
math_qa
mathqa_03_00006
if x , y , and z are positive real numbers such that x ( y + z ) = 62 , y ( z + x ) = 82 , and z ( x + y ) = 100 , then xyz is
[ "120", "50", "60", "70" ]
A
math_qa
mathqa_03_04842
the first doughnut is priced at $ 1 and then if you purchase additional doughnuts as dozens then the price is $ 6 / dozen . what is the total number of doughnuts purchased if you paid $ 26 ?
[ "50", "52", "54", "56" ]
A
math_qa
mathqa_03_05292
the end of a blade on an airplane propeller is 15 feet from the center . if the propeller spins at the rate of 1,320 revolutions per second , how many miles will the tip of the blade travel in one minute ? ( 1 mile = 5,280 feet )
[ "200 π", "240 π", "300 π", "450 π" ]
D
sciq
sciq_01_07403
Unburned hydrocarbons can more easily be converted to carbon dioxide and water in the presence of a what?
[ "temperature", "Ethanol", "methane", "catalyst" ]
D
ARC-Easy
arc_04_00479
Which statement is a description of weather?
[ "Summers in Tucson are hot and dry.", "Winters in Flagstaff are cold and snowy.", "The temperature is 55° F in Winslow today.", "The Sun will set in Yuma today at 6:45 p.m." ]
C
math_qa
mathqa_03_00616
a jogger running at 9 km / hr along side a railway track is 250 m ahead of the engine of a 100 m long train running at 99 km / hr in the same direction . in how much time will the train pass the jogger ?
[ "14 sec", "67 sec", "98 sec", "36 sec" ]
A
openbookqa
obqa_02_00815
Which is needed for photosynthesis to occur
[ "chemical with the atomic number 18", "energy that takes 8.3 minutes to travel to Earth", "the 8th entry on the periodic table", "the most prevalent chemical in the atmosphere" ]
B
math_qa
mathqa_03_01924
in township k , 1 / 4 of the housing units are equiped with cable tv . if 1 / 10 of the housing units , including 1 / 3 of those that are equiped with cable tv , are equipped with videocassette recorders , what fraction of the housing units have neither cable tv nor videocassette recorders ?
[ "23 / 30", "11 / 15", "7 / 10", "1 / 6" ]
B
sciq
sciq_01_03142
The axial skeleton forms the vertical, central axis of the body and includes all bones of the head, neck, chest, and back. it serves to protect the brain, spinal cord, heart, and what else?
[ "intestines", "knees", "ovaries", "lungs" ]
D
sciq
sciq_01_06748
Unlike bryophyte and fern spores (which are haploid cells dependent on moisture for rapid development of gametophytes), seeds contain a diploid embryo that will germinate into what?
[ "gametophyte", "sporophyte", "ovary", "sperm" ]
B
sciq
sciq_01_06624
What tube carries urine out of the body?
[ "fallopian tube", "uterus", "urethra", "kidney" ]
C
math_qa
mathqa_03_03861
a contractor is engaged for 30 days on the condition that he receives rs . 25 for eachday he works & is fined rs . 7.50 for each day is absent . he gets rs . 425 in all . for how many days was heabsent ?
[ "5", "10", "17", "25" ]
B
ARC-Easy
arc_04_00578
The smallest unit of a plant that can perform all of the processes of life is the
[ "leaf.", "cell.", "tissue.", "root." ]
B
sciq
sciq_01_07527
Different types of interference include destructive and what else?
[ "active", "consistent", "helpful", "constructive" ]
D
math_qa
mathqa_03_04463
a number x is multiplied with itself and then added to the product of 4 and x . if the result of these two operations is 12 , what is the value of x ?
[ "- 4", "- 2", "2 and 6", "4" ]
C
openbookqa
obqa_02_02652
Where would you find a less than average amount of biodiversity compared to other biomes?
[ "a jungle", "the arctic", "a forest", "a rain forest" ]
B
openbookqa
obqa_02_03653
If a thing has a good impact on nature, it is most likely
[ "putting plastics in special containers", "burning old used tires", "putting cigarettes out in ponds", "using aerosol air fresheners" ]
A
sciq
sciq_01_01118
What is it called when the chance that a certain event will occur?
[ "difficulty", "probability", "mutation", "procession" ]
B
openbookqa
obqa_02_02235
A creature's habitat, if it has flippers and carries a home with it, is likely
[ "mountainous", "arid", "salty", "dry" ]
C
math_qa
mathqa_03_01538
let n be the greatest number that will divide 1305 , 4665 and 6905 , leaving the game remainder in each case . then sum of the digits in n is :
[ "4", "5", "6", "8" ]
A
math_qa
mathqa_03_04108
the l . c . m . of 2 numbers is 48 . the numbers are in the ratio 2 : 3 . find their sum ?
[ "36", "40", "48", "32" ]
B
openbookqa
obqa_02_01820
dead organisms are the source of what for decomposers?
[ "place to sleep", "art", "friendship", "sustenance" ]
D
ARC-Easy
arc_04_00096
When someone plays the flute, sound is produced because the air in the flute is
[ "hot.", "neutral.", "vibrating.", "vaporizing." ]
C
math_qa
mathqa_03_00935
a customer went to a shop and paid a total of $ 30 , out of which $ 1.28 was for sales tax on taxable purchases . if the tax rate was 8 % , then what was the cost of the tax free items ?
[ "$ 9.84", "$ 10.68", "$ 11.26", "$ 12.72" ]
D
sciq
sciq_01_06493
Resistors connected end to end are said to be in what?
[ "groups", "lines", "parallel", "series" ]
D