dataset
stringclasses
5 values
id
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6
18
question
stringlengths
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1.92k
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answer
stringclasses
5 values
aqua_train
aqua_train_90332
The owner of a furniture shop charges his customer 24% more than the cost price. If a customer paid Rs. 8339 for a computer table, then what was the cost price of the computer table?
[ "A)Rs.6725", "B)Rs.6729", "C)Rs.6710", "D)Rs.6725", "E)Rs.6721" ]
D
aqua_train
aqua_train_84438
A train crosses a platform of 120 m in 15 sec, same train crosses another platform of length 180 m in 18 sec. then find the length of the train?
[ "A)227m", "B)180m", "C)176m", "D)126m", "E)167m" ]
B
aqua_train
aqua_train_8122
Tough and Tricky questions: Functions. Let a be a positive integer. Let n#a equal n^(2a) if a is odd and n^(a) if a is even. Then (2#3) + (3#2) – (3#3) is equal to
[ "A)-656", "B)82", "C)128", "D)512", "E)1522" ]
A
aqua_train
aqua_train_87588
In the equation ax^2 + bx + c = 0 a, b, and c are constants, and abc # 0. If one root of the equation is -2, and b = 10a then which of the following is c equal to?
[ "A)a/12", "B)a/8", "C)6a", "D)8a", "E)16a" ]
E
aqua_train
aqua_train_87361
A van takes 6 hours to cover a distance of 288 Km. how much should the speed in Kmph be maintained to cover the same direction in 3/2th of the previous time?
[ "A)50 Kmph", "B)60 Kmph", "C)32 Kmph", "D)80 Kmph", "E)90 Kmph" ]
C
aqua_train
aqua_train_74127
The difference between the value of a number increased by 12.5% and the value of the original number decreased by 25% is 30. What is the original number W?
[ "A)60", "B)80", "C)40", "D)120", "E)160" ]
B
sciq
sciq_4
What type of ecologists work to identify and manipulate the processes that most limit recovery of ecosystems from disturbances?
[ "environmental", "conservation ecologists", "quality ecologists", "restoration ecologists" ]
D
aqua_train
aqua_train_32202
A certain factory employed 600 men and 400 women and the average wager was Rs. 25.50 per day, If a woman got Rs. 5 less than a man, then what are their daily wages ?
[ "A)m:27.50 w:22.22", "B)m:27.50 w:22.50", "C)m:27.50 w:22.20", "D)m:23.50 w:22.50", "E)m:27.50 w:21.50" ]
B
aqua_train
aqua_train_40580
What is the value of 100p2 ?
[ "A)9801", "B)12000", "C)5600", "D)9900", "E)None of these" ]
D
aqua_train
aqua_train_68225
The residents of the town L participated in a survey to determine the number of hours per week each resident spent watching television. The distribution of the results of the survey had a mean of 21 hours and a standard deviation of 6 hours. The number of hours that Pat, a resident of town L, watched television last we...
[ "A)- 30", "B)- 20", "C)- 18", "D)- 12", "E)- 6" ]
E
aqua_train
aqua_train_36791
43 : 34 :: 52 :?
[ "A)49", "B)25", "C)36", "D)64", "E)56" ]
B
aqua_train
aqua_train_12999
A bag consists of 60 marbles, of which 5 are blue, 9 are red, and the remainder are white. If Lisa is to select a marble from the bag at random, what is the probability that the marble will be red or white?
[ "A)11/12", "B)2/4", "C)1/4", "D)1/8", "E)1/16" ]
A
aqua_train
aqua_train_53785
The ratio of cats to dogs to birds to fish is 7:8:9:10. There are no other types of animals in the pet store.which of the following cannot be the total number of animals in the store?
[ "A)68", "B)102", "C)136", "D)170", "E)210" ]
E
sciq
sciq_4
A globe is the best way to make a map of what?
[ "a continent", "solar system", "a city", "whole earth" ]
D
science_train
science_train_3839
Question: Is the following statement about our solar system true or false? The volume of Uranus is less than one-tenth of the volume of Saturn. Hints:
[ "false", "true" ]
B
sciq
sciq_4
Desert plants have special stems and leaves to conserve what?
[ "food", "air", "habitat", "water" ]
D
aqua_train
aqua_train_11210
A cricket bat is sold for $900, making a profit of $225. The profit percentage would be
[ "A)24%", "B)25.5%", "C)33.33%", "D)36.3%", "E)40%" ]
C
aqua_train
aqua_train_23710
A 300 meter long train crosses a platform in 27 seconds while it crosses a signal pole in 18 seconds. What is the length of the platform?
[ "A)150m", "B)278m", "C)350m", "D)228m", "E)282m" ]
A
aqua_train
aqua_train_24218
What is the CP of Rs 100 stock at 7 discount, with 1/5% brokerage?
[ "A)93.2", "B)96.2", "C)97.5", "D)98.25", "E)None of these" ]
A
ds_train
ds_train_525
Immunohistochemistry (IHC) is a powerful tool widely used in research and clinical diagnosis. One of its primary applications is the identification and localization of specific proteins within tissue sections. Among the following options, which statement best describes the role of antibodies in IHC?
[ "A. Antibodies in IHC serve as enzymes to catalyze the binding of substrate to tissue proteins.\nB. Antibodies in IHC act as probes that specifically bind to target antigens to visualize protein expression.\nC. Antibodies in IHC are used exclusively as markers to increase the overall contrast of tissue sections.\nD...
B
sciq
sciq_4
The upper portion of the septum is formed by the perpendicular plate of which bone?
[ "concomitant bone", "duodenum bone", "colossal bone", "ethmoid bone" ]
D
sciq
sciq_4
What can exposure to chemical or biological agents cause later in life?
[ "adaptation", "spontaneous mutation", "regression", "an acquired immunodeficiency" ]
D
aqua_train
aqua_train_13390
The radius of a wheel is 22.4 cm. What is the distance covered by the wheel in making 500 resolutions?
[ "A)287 m", "B)704 m", "C)278 m", "D)298 m", "E)286 m" ]
B
aqua_train
aqua_train_73322
What is the CP of Rs 100 stock at 6 discount, with 1/5% brokerage?
[ "A)96.9", "B)96.3", "C)94.2", "D)96.7", "E)96.21" ]
C
aqua_train
aqua_train_94082
The present age of a father is 3 years more than three times the age of his son. Three years hence, father's age will be 10 years more than twice the age of the son. Find the present age of the father.
[ "A)33", "B)38", "C)29", "D)40", "E)48" ]
A
aqua_train
aqua_train_18009
In a single throw of a die what is the probability of getting a number greater than 2 ?
[ "A)2/3", "B)1/4", "C)2/5", "D)1/3", "E)1/5" ]
A
aqua_train
aqua_train_63811
In order to fence a square Manish fixed 48 poles. If the distance between two poles, is 3 metres then what will be the area of the square so formed?
[ "A)Cannot be determined", "B)2600 cm2", "C)2500 cm2", "D)1296 cm2", "E)None of these" ]
D
aqua_train
aqua_train_64299
The average salary of all the workers in a workshop is Rs. 8000. The average salary of 7 technicians is Rs. 10000 and the average salary of the rest is Rs. 6000. The total number of workers in the workshop is:
[ "A)23", "B)19", "C)22", "D)20", "E)14" ]
E
aqua_train
aqua_train_67793
A team of 6 cooks is chosen from 8 men and 6 women. The team must have at least 2 men and at least 3 women. How many ways can this team be created?
[ "A)1540", "B)320", "C)560", "D)700", "E)840" ]
A
aqua_train
aqua_train_64979
A present value of a machine is $900. Its value depletiation rate is 25% per annum then find the machine value before 2 years?
[ "A)$1500", "B)$1200", "C)$1600", "D)$1000", "E)$1350" ]
C
aqua_train
aqua_train_31659
How many bricks, each measuring 25 cm x 11.25 cm x 6 cm, will be needed to build a wall of 4 m x 2 m x 25 cm?
[ "A)5600", "B)6000", "C)1185", "D)7200", "E)8600" ]
C
sciq
sciq_4
Mountain building and earthquakes are some of the responses of rocks when subected to what?
[ "time", "erosion", "weather", "stress" ]
D
aqua_train
aqua_train_28767
A shop keeper marked 20% above the cost price and offered 15% discount then find it's net profit?
[ "A)2%", "B)5%", "C)8%", "D)10%", "E)15%" ]
A
aqua_train
aqua_train_35360
8^b + 8^b + 8^b + 8^b + 8^b + 8^b + 8^b + 8^8 =
[ "A)7^b", "B)8^(b + 1)", "C)7^(7b)", "D)8^b", "E)49^B" ]
B
aqua_train
aqua_train_69600
What is the value of (P + Q)/(P - Q) if P/Q is 6?
[ "A)4/3", "B)2/3", "C)2/6", "D)7/5", "E)8/7" ]
D
aqua_train
aqua_train_65172
Given that 268x74= 19832, find the value of 2.68x.74.
[ "A)1.9832", "B)1.0025", "C)1.5693", "D)1.0266", "E)None" ]
A
aqua_train
aqua_train_53797
If a man crosses a 600 m long street in 5 minutes. What is his speed?
[ "A)5.2 km/hr", "B)6.5 km/hr", "C)7.2 km/hr", "D)8.9 km/hr", "E)9.8 km/hr" ]
C
aqua_train
aqua_train_56501
Sujal covers a distance in 40 min , if she drives at a speed of 60 km/h on an average. Find the speed at which she must drive at to reduce the time of the journey by 25%.
[ "A)60 km/h", "B)70 km/h", "C)75 km/h", "D)80 km/h", "E)85 km/h" ]
D
aqua_train
aqua_train_6908
A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?
[ "A)40 sec", "B)42 sec", "C)45 sec", "D)48 sec", "E)50 sec" ]
A
aqua_train
aqua_train_64734
A teacher gave the same test to three history classes: U, B, and C. The average (arithmetic mean) scores for the three classes were 65, 80, and 77, respectively. The ratio of the numbers of students in each class who took the test was 4 to 6 to 5, respectively. What was the average score for the three classes combined?
[ "A)74", "B)75", "C)76", "D)77", "E)78" ]
B
aqua_train
aqua_train_8375
If the sales tax reduced from 3 1/2 % to 3 1/3%, then what difference does it make to a person who purchases an article with market price of Rs. 10800 ?
[ "A)11", "B)13", "C)14", "D)18", "E)10" ]
D
aqua_train
aqua_train_28051
Right triangle ABC is to be drawn in the xy-plane so that the right angle is at A and AB is parallel to the y-axis. If the x- and y-coordinates of A, B, and C are to be integers that are consistent with the inequalities -7 ≤ x ≤ 1 and 4 ≤ y ≤ 9 , then how many different triangles can be drawn that will meet these condi...
[ "A)54", "B)432", "C)2,160", "D)3024", "E)148,824" ]
D
aqua_train
aqua_train_39297
6^5 is equal to which of the following?
[ "A)7,776", "B)8,752", "C)9,660", "D)2,662", "E)1,608" ]
A
aqua_train
aqua_train_43231
38, 87, 22,76, 31,47, 13, 82 Which of the following numbers is greater than three-fourth of the numbers but less than one-fourth of the numbers in the list above?
[ "A)a- 55", "B)b- 68", "C)c- 79", "D)d- 81", "E)e- 85" ]
C
science_train
science_train_645
Question: Which animal's skin is better adapted as a warning sign to ward off predators? Hints:
[ "sharpnose-puffer", "peppered moth" ]
A
aqua_train
aqua_train_37281
The rate of Interest on a sum of money is 3% p.a. for the first 3 years, 4% p.a. for the next 4 years, and 5% for the period beyond 7 years. If the S.I, Occurred on the sum for the total period of 8 years is Rs. 540/-, the sum is
[ "A)1,200", "B)1,800", "C)2,100", "D)2,250", "E)2,540" ]
B
aqua_train
aqua_train_23878
In a question on division with zero remainder, a candidate took 12 as divisor instead of 21. The quotient obtained by him was 35. The correct quotient is/
[ "A)20", "B)22", "C)24", "D)26", "E)27" ]
A
aqua_train
aqua_train_68425
Letters of alphabets no from 1 to 26 are consecutively with 1 assigned to A and 26 to Z. By 27th letter we mean A, 28th B. In general 26m+n, m and n negative intezers is same as the letters numbered n. Let P = 6, strange country military general sends this secret message according ot the following codification scheme. ...
[ "A)DFHASDO", "B)HDFAHLOU", "C)LDOIHYAD", "D)GHLKZOIR", "E)LODIHFAD" ]
D
sciq
sciq_4
Which organisms capture light energy and convert it to chemical energy inside their cell?
[ "chloroplasts", "pores", "sporozoans", "phototrophs" ]
D
aqua_train
aqua_train_32710
A and B can do a work in 10 days and 15 days respectively. A starts the work and B joins him after 2 days. In how many days can they complete the remaining work?
[ "A)6 days", "B)2 days", "C)4 4/5 days", "D)3 days", "E)9 days" ]
C
aqua_train
aqua_train_89160
A salesperson receives a base salary of $900 per month and a commission of 7.5% of the selling price of each item sold above the first 50 item. If this month she sold 210 items for $150 each, what will her monthly salary be?
[ "A)$1,500", "B)$1,800", "C)$2,100", "D)$2,700", "E)$2,800" ]
D
aqua_train
aqua_train_18754
If 80% of a number is equal to four-third of another number, what is the ratio of first number to the second number?
[ "A)5:3", "B)1:4", "C)3:7", "D)6:11", "E)2:3" ]
A
aqua_train
aqua_train_45813
Two persons A and B can complete a piece of work in 20 days and 40 days respectively. If they work together, what part of the work will be completed in 5 days?
[ "A)1/8", "B)1/3", "C)3/6", "D)3/8", "E)5/3" ]
D
aqua_train
aqua_train_29378
A box contains seven bulbs out of which 5 are defective. If four bulbs are chosen at random, find the probability that atleast one bulb is good.
[ "A)125/167", "B)125/186", "C)125/126", "D)125/186", "E)20/21" ]
E
science_train
science_train_2101
Question: What information supports the conclusion that Abigail inherited this trait? Hints:
[ "Both of Abigail's biological parents have naturally black hair.", "Some people use a hair dryer to straighten their hair. But Abigail and her brothers have naturally straight hair.", "When she was younger", "Abigail wore ribbons in her naturally black hair." ]
A
aqua_train
aqua_train_75259
The first ticket is purchased at $2,40 and then the following purchases of ten tickets costs $2,20/ticket. What is the total number of tickets purchased if $90,40 is paid?
[ "A)38", "B)39", "C)40", "D)41", "E)42" ]
D
aqua_train
aqua_train_59018
If the difference of two numbers is 3 and the difference of their square is 39, then the larger number is:
[ "A)9", "B)2", "C)12", "D)14", "E)8" ]
E
science_train
science_train_2778
Question: Which property do these four objects have in common? Hints:
[ "fragile", "sticky", "hard" ]
C
aqua_train
aqua_train_71053
The product of x and y is a constant. If the value of x is increased by 80%, by what percentage must the value of y be decreased?
[ "A)45%", "B)55%", "C)35%", "D)40%", "E)44.44%" ]
E
sciq
sciq_4
What element is released into the atmosphere by the burning of fossil fuels?
[ "carbon", "helium", "oxygen", "sulfur" ]
D
aqua_train
aqua_train_46503
If a is the smallest positive integer such that 3,150 multiplied by a is the square of an integer, then a must be
[ "A) 2", "B) 5", "C) 6", "D) 7", "E) 14" ]
E
aqua_train
aqua_train_4224
In a can, there is a mixture of milk and water in the ratio 5:3. If the can is filled with an additional 8 liters of milk, the can would be full and the ratio of milk and water would become 2:1. Find the capacity of the can?
[ "A)56", "B)60", "C)64", "D)68", "E)72" ]
E
aqua_train
aqua_train_91833
A fruit salad mixture consists of apples, peaches, and grapes. There are 3 times as many pounds of apples as grapes and 2.5 times as many pounds of peaches as grapes. If a mixture that has an average (arithmetic mean) of 26 pounds per fruit, how many more pounds of apples than grapes does the mixture have?
[ "A)24", "B)11", "C)9", "D)6", "E)5" ]
A
aqua_train
aqua_train_57607
A positive number x is multiplied by 10, and this product is then divided by 3. If the positive square root of the result of these two operations equals x, what is the value of x ?
[ "A) 9/4", "B) 3/2", "C) 4/3", "D) 2/3", "E) 10/3" ]
E
aqua_train
aqua_train_36255
A walks at 30 kmph and 30 hours after his start, B cycles after him at 55 kmph. How far from the start does B catch up with A?
[ "A)1200km", "B)1980km", "C)2000km", "D)2500km", "E)3600km" ]
B
sciq
sciq_4
During the winter, production of what amine involved in the sleep-wake cycle may be affected by less sunlight hours?
[ "serotonin", "dopamine", "folate", "melatonin" ]
D
sciq
sciq_4
The monosaccharide glucose is broken down through a series of enzyme-catalyzed reactions known as what?
[ "Digestion", "Respiration", "photosynthesis", "glycolysis" ]
D
aqua_train
aqua_train_95299
The least whole number which when subtracted from both the terms of the ratio 6 : 7 to give a ratio less than 16 : 21, is
[ "A)3", "B)4", "C)5", "D)6", "E)7" ]
A
aqua_train
aqua_train_85935
In your classes you counted 120 hands. How many students were at the class?
[ "A)60", "B)61", "C)85", "D)86", "E)88" ]
A
aqua_train
aqua_train_53439
If the units digit of n^27 is 7, which of the following could be the value of n? I. n = 41 II. n = 43 III. n = 47
[ "A)Only I", "B)Only II", "C)Only III", "D)I and II", "E)II and III" ]
B
aqua_train
aqua_train_21857
A person travels equal distances with speeds of 3km/hr, 4km/hr, 5km/hr. and takes a total time of 47minutes. Find the total distance ?
[ "A)3", "B)2", "C)5", "D)4", "E)6" ]
A
aqua_train
aqua_train_20148
The average monthly salary of the employees of a firm is Rs.60 out of the employees 12 officers get an average of Rs.400 per month and the rest an average of Rs. 56 per month , Find the number of emp
[ "A)3278", "B)1028", "C)1022", "D)1029", "E)1032" ]
E
sciq
sciq_4
Soil that forms in place over a very long period is called what?
[ "leakage soil", "antique soil", "resultant soil", "residual soil" ]
D
aqua_train
aqua_train_19553
How much 60% of 50 is greater than 40% of 30?
[ "A)18", "B)27", "C)26", "D)29", "E)21" ]
A
aqua_train
aqua_train_59304
A tap can fill a tank in 4 hours. After half the tank is filled, two more similar taps are opened. What is the total time taken to fill the tank completely?
[ "A)1 hr 20 min", "B)4 hr", "C)3 hr", "D)2 hr 40 min", "E)2 hr 50 min" ]
D
sciq
sciq_4
During interphase, the cell undergoes normal growth processes while also preparing for what, by accumulating energy and building blocks of dna?
[ "proteins division", "chromosome division", "technology division", "cell division" ]
D
science_train
science_train_2867
Question: Select the reptile below. Hints:
[ "bull shark", "Chinese alligator" ]
B
aqua_train
aqua_train_83875
If a man lost 4% by selling oranges at the rate of 12 a rupee at how many a rupee must he sell them to gain 44%?
[ "A)6", "B)8", "C)6", "D)5", "E)4" ]
B
science_train
science_train_4988
Question: Which property do these two objects have in common? Hints:
[ "sticky", "bendable" ]
B
sciq
sciq_4
The volume of a regularly shaped solid can be calculated from its what?
[ "layers", "density", "mass", "dimensions" ]
D
aqua_train
aqua_train_14734
If x≠7 and (x^2 - 49)/(2y) = (x - 7)/4, then in terms of y, x = ?
[ "A)(y - 6)/2", "B)(y - 3)/2", "C)y - 3", "D)y - 6", "E)(y - 14)/2" ]
E
ds_train
ds_train_271
Consider an electron in a one-dimensional infinite potential well (also known as a particle in a box) of width \( L \). What is the energy of the electron in its \( n \)-th quantum state?
[ "A. \\( \\frac{n^2 h^2}{8mL^2} \\) \nB. \\( \\frac{n h}{2mL} \\)\nC. \\( \\frac{n^2 h^2}{2mL^2} \\)\nD. \\( \\frac{n^2 h}{4mL} \\)" ]
A
aqua_train
aqua_train_63249
In a market, a dozen eggs cost as much as a pound of rice, and a half-liter of kerosene costs as much as 8 eggs. If the cost of each pound of rice is $0.33, then how many E cents does a liter of kerosene cost? [One dollar has 100 cents.]
[ "A) 0.33", "B) 0.44", "C) 0.55", "D) 44", "E) 55" ]
D
aqua_train
aqua_train_56315
In how many ways a committee, consisting of 4 men and 2 women can be formed from 6men and 4 women?
[ "A)120", "B)60", "C)90", "D)150", "E)35" ]
C
aqua_train
aqua_train_61329
The calendar of the year 2040 can be used again in the year?
[ "A)2063", "B)2061", "C)2111", "D)2191", "E)2068" ]
E
aqua_train
aqua_train_30396
3 candidates in an election and received 1136, 7636 and 11628 votes respectively. What % of the total votes did the winningcandidate got in that election?
[ "A)45%", "B)47%", "C)57%", "D)60%", "E)62%" ]
C
sciq
sciq_4
What do plants lose the most of through the stomata?
[ "energy", "chlorophyll", "heat", "water" ]
D
aqua_train
aqua_train_56352
Pipe A can fill a tank in 6 hours, pipe B in 18 hours and pipe C in 36 hours. If all the pipes are open, in how many hours will the tank be filled ?
[ "A)2.5 hours", "B)2 hours", "C)4 hours", "D)3 hours", "E)None of these" ]
C
aqua_train
aqua_train_20571
Judges will select 6 finalists from the 8 contestants entered in a singing competition. The judges will then rank the contestants and award prizes to the 3 highest ranked contestants: a blue ribbon for first place, a red ribbon for second place, and a yellow ribbon for third place. How many different arrangements of pr...
[ "A)10", "B)21", "C)210", "D)420", "E)560" ]
E
aqua_train
aqua_train_30080
A batsman scored 120 runs which included 3 boundaries and 8 sixes. What percent of his total score did he make by running between the wickets.
[ "A)40%", "B)50%", "C)60%", "D)70%", "E)80%" ]
B
aqua_train
aqua_train_38647
21 ball numbered 1 to 21. A ballis drawn and then another ball is drawn without replacement.
[ "A)7/41", "B)3/41", "C)9/42", "D)4/51", "E)5/13" ]
C
sciq
sciq_4
Unlike the cells of plants and fungi, animal cells lack what?
[ "mitochondria", "flagella", "nuclei", "cell wall" ]
D
aqua_train
aqua_train_37793
The amount of water (in ml) that should be added to reduce 6 ml. Lotion, containing 50% alcohol, to a lotion containing 30% alcohol, is?
[ "A)8 ml", "B)5 ml", "C)4 ml", "D)6 ml", "E)1 ml" ]
C
sciq
sciq_4
What is the term for land that has permanently frozen soil?
[ "ice desert", "snow-field", "Arctic", "permafrost" ]
D
aqua_train
aqua_train_96815
Let x, y and z be distinct integers, x and y are odd and positive, and z is even and positive. Which one of the following statements cannot be true?
[ "A)(x – z)^2 * y is even", "B)(x – z)*y^2 is odd", "C)(x – z)*y is odd", "D)(x – y)^2 * z is even", "E)none" ]
A
aqua_train
aqua_train_58432
A box contains 6 pairs of shoes (12 shoes in total). If two shoes are selected at random, what it is the probability that they are matching shoes?
[ "A)1/11", "B)1/20", "C)1/19", "D)1/10", "E)1/9" ]
A
aqua_train
aqua_train_25798
The ratio of the number of boys and girls in a school is 3:2 Out of these 10% the boys and 25% of girls are scholarship holders. % of students who are not scholarship holders.?
[ "A)84%", "B)86%", "C)88%", "D)82%", "E)74%" ]
A
sciq
sciq_4
Bronchial tubes in the lungs branch into ever-smaller structures, finally ending in alveoli. the alveoli act like what?
[ "filters", "springs", "bellows", "tiny bubbles" ]
D
aqua_train
aqua_train_45139
What is the difference between the compound interests on $5000 for 1 years at 4% per annum compounded yearly and half-yearly?
[ "A)$2.04", "B)$3.06", "C)$4.80", "D)$8.30", "E)$9.30" ]
A
aqua_train
aqua_train_80720
On a ranch, a rancher can place a loop of rope, called a lasso, once in every 2 throws around a cow’s neck. What is the probability that the rancher will be able to place a lasso around a cow’s neck at least once in 4 attempts?
[ "A)3/4", "B)5/8", "C)7/8", "D)11/16", "E)15/16" ]
E