dataset
stringclasses
5 values
id
stringlengths
6
18
question
stringlengths
3
1.92k
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listlengths
1
36
answer
stringclasses
5 values
aqua_train
aqua_train_88268
The average age 18 members of a committee are the same as it was 2 years ago, because an old number has been replaced by a younger number. Find how much younger is the new member than the old number?
[ "A)18", "B)99", "C)77", "D)26", "E)36" ]
E
aqua_train
aqua_train_23090
The L.C.M of two numbers is 48. The numbers are in the ratio 1:2. The sum of numbers is:
[ "A)28", "B)30", "C)40", "D)50", "E)72" ]
E
aqua_train
aqua_train_51719
20^10 / 120^5=?
[ "A)6^5", "B)5^6", "C)(10/3)^5", "D)6^3", "E)15^3" ]
C
aqua_train
aqua_train_45998
Find the average of the first 19 natural numbers?
[ "A)8", "B)9", "C)10", "D)11", "E)12" ]
C
aqua_train
aqua_train_58251
A driver of auto rickshaw makes a profit of 20% on every trip when he carries 3 passengers and the price of petrol is Rs. 30 a litre. Find the % profit for the same journey if he goes for 4 passengers per trip and the price of petrol reduces to Rs. 24 litres?
[ "A)40%.", "B)60%.", "C)80%.", "D)100%.", "E)120%." ]
D
aqua_train
aqua_train_34373
How many numbers up to 300 and 700 are divisible by 2, 3 and 7 both together?
[ "A)9", "B)12", "C)5", "D)8", "E)4" ]
A
aqua_train
aqua_train_22801
How many words can be formed by using all letters of the word ‘RIO’ ?
[ "A)6", "B)7", "C)8", "D)9", "E)10" ]
A
aqua_train
aqua_train_13418
A table is bought for Rs.400/- and sold at Rs.450/- find gain or loss percentage
[ "A)10%loss", "B)12.5%gain", "C)10%gain", "D)15%loss", "E)20% loss" ]
B
aqua_train
aqua_train_35582
If b> 0, a> 0, and (b^2)a= b,then which of the following MUST equal b?
[ "A)1/(a^2)", "B)B.1/a", "C)A", "D)A^2", "E)A^2 – 2b+1" ]
B
aqua_train
aqua_train_52897
If 1/(n – 2) = 1/(n + 2) + 1/(n – 1), which of the following is a possible value of n?
[ "A)-3", "B)0", "C)3", "D)-4", "E)4" ]
B
aqua_train
aqua_train_96628
A list of measurements in increasing order is 4, 5, 6, 8, 15 and x. If the median of these measurements is 3/4 times their arithmetic mean, what is the value of x?
[ "A)16", "B)18", "C)20", "D)22", "E)24" ]
B
aqua_train
aqua_train_91364
Sand is poured into a box so that the box is being filled at the rate of 3 cubic feet per hour. If the empty rectangular box is 5 feet long, 4 feet wide, and 3 feet deep, approximately how many hours does it take to fill the box?
[ "A)14", "B)16", "C)18", "D)20", "E)22" ]
D
aqua_train
aqua_train_61084
A can do a work in 12 days. B is 60% more efficient than A. How many days does B alone take to do the same job?
[ "A)15/2", "B)10", "C)7/2", "D)12", "E)6" ]
A
aqua_train
aqua_train_94118
If p, q, and r are positive numbers such that (p/(p+q))(10) + (q/(p+q))(20)=r and if p<q which of the following could be the value of r?
[ "A)10", "B)12", "C)15", "D)18", "E)30" ]
D
aqua_train
aqua_train_52116
5 men are equal to as many women as are equal to 8 boys. All of them earn Rs.150 only. Men’s wages are?
[ "A)6Rs", "B)2Rs", "C)4Rs", "D)9Rs", "E)10Rs" ]
E
sciq
sciq_4
What is the base of nearly all food chains on earth?
[ "glycolysis", "atherosclerosis", "synthesis", "photosynthesis" ]
D
aqua_train
aqua_train_29336
7589-?=3434
[ "A)4242", "B)4155", "C)1123", "D)11023", "E)None of them" ]
B
aqua_train
aqua_train_49889
Choose the missing terms out of the given alternatives. AZ, BY, ?
[ "A)EF", "B)GH", "C)ED", "D)DW", "E)CX" ]
E
aqua_train
aqua_train_22676
A grocer has a sale of Rs. 4435, Rs. 4927, Rs. 4855, Rs. 5230 and Rs. 4562 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs. 4500?
[ "A)1991", "B)2991", "C)3991", "D)4521", "E)5991" ]
B
aqua_train
aqua_train_42599
A and B began business with Rs.3000 and Rs.4000 after 8 months, A withdraws Rs.1000 and B advances Rs.1000 more. At the end of the year, their profits amounted to Rs.630 find the share of A.
[ "A)240", "B)388", "C)379", "D)277", "E)122" ]
A
aqua_train
aqua_train_86428
A does a work in 10 days and B does the same work in 30 days. In how many days they together will do the same work ?
[ "A)5.5 days", "B)6.5 days", "C)7.5 days", "D)8.5 days", "E)None of these" ]
C
aqua_train
aqua_train_2752
Zinc and copper are melted together in the ratio 9 : 11. What is the weight of melted mixture, if 33.3 kg of zinc has been consumed in it?
[ "A)58 kg", "B)60 kg", "C)64 kg", "D)70 kg", "E)74" ]
E
aqua_train
aqua_train_89736
If the average (arithmetic mean) of x, y, and 40 is 5 greater than the average of x, y, 40, and 60, find the average of x and y.
[ "A)100", "B)110", "C)120", "D)140", "E)150" ]
A
aqua_train
aqua_train_72420
If a, b, and c are negative integers and 3a - 3b = -3c, then which of the following statements must be true? I. a> b II. a> b> c III. a= c
[ "A)I and II", "B)I only", "C)II only", "D)III only", "E)None" ]
B
aqua_train
aqua_train_51990
A certain high school has 500 students. Of these students, 50 are taking music, 20 are taking art, and 10 are taking both music and art. How many students are taking neither music nor art?
[ "A)430", "B)440", "C)450", "D)460", "E)470" ]
B
science_train
science_train_4430
Question: Which is this organism's common name? Hints:
[ "American crocodile", "Crocodylus acutus" ]
A
aqua_train
aqua_train_88240
Three unbiased coins are tossed. What is the probability of getting at most two heads?
[ "A)9/7", "B)7/8", "C)1/2", "D)5/4", "E)3/8" ]
B
aqua_train
aqua_train_29456
How many 4 digit numbers can be formed if the tens and thousands digits are even, and the hundreds and units digits are odd?
[ "A)100", "B)200", "C)300", "D)400", "E)500" ]
E
science_train
science_train_4477
Question: What type of rock is siltstone? Hints:
[ "metamorphic", "sedimentary" ]
B
science_train
science_train_1083
Question: Based on this information, what is this tomato plant's phenotype for the fruit texture trait? Hints:
[ "FF", "smooth fruit" ]
B
sciq
sciq_4
What is the major cause of outdoor air pollution?
[ "electric lines", "agricultural equipment", "manufacturing industry", "burning fossil fuels" ]
D
aqua_train
aqua_train_52365
What is the units digit of the product of the first 50 odd numbers?
[ "A)0", "B)1", "C)2", "D)3", "E)5" ]
E
science_train
science_train_918
Question: Compare the average kinetic energies of the particles in each sample. Which sample has the higher temperature? Hints:
[ "sample B", "sample A", "neither; the samples have the same temperature" ]
A
aqua_train
aqua_train_81640
Nitin's age was equal to square of some number last year and the following year it would be cube of a number. If again Nitin's age has to be equal to the cube of some number, then for how long he will have to wait?
[ "A)10 years", "B)38 years", "C)39 years", "D)64 years", "E)52 years" ]
B
aqua_train
aqua_train_76919
The dimensions of a room are 25 feet * 15 feet * 12 feet. What is the cost of white washing the four walls of the room at Rs. 6 per square feet if there is one door of dimensions 6 feet * 3 feet and three windows of dimensions 4 feet * 3 feet each?
[ "A)s.4528", "B)s.4520", "C)s.5436", "D)s.4530", "E)s.4521" ]
C
science_train
science_train_4640
Question: Which object has less thermal energy? Hints:
[ "a 200-gram glass of grape juice at a temperature of 20°C", "a 200-gram glass of grape juice at a temperature of 10°C" ]
B
sciq
sciq_4
Which branch of biology studies animal behavior?
[ "microbiology", "anthropology", "embryology", "ethology" ]
D
aqua_train
aqua_train_82277
The ratio of investments of A, B and C is 5:6:7. If they share the profit in the ratio of 5:18:14, then find the ratio of their periods of investments.
[ "A)1:3:2", "B)3:5:6", "C)3:2:4", "D)2:4:3", "E)2:5:3" ]
A
aqua_train
aqua_train_80234
Which number should replace both the asterisks in (* /21) x (*/84) = 1 ?
[ "A)21", "B)42", "C)63", "D)72", "E)168" ]
B
ds_train
ds_train_690
Which of the following best describes the primary goal of herbalism within the framework of modern complementary and alternative medicine (CAM)?
[ "A. To replace conventional medicine with natural remedies.\nB. To integrate plant-based treatments with conventional medical practices to enhance overall patient care.\nC. To eliminate the use of synthetic medications in healthcare.\nD. To exclusively use plants for treating all diseases and ailments." ]
B
aqua_train
aqua_train_22573
Two pipes A and B can fill a tank in 12 hours and 15 hours respectively. If both the pipes are opened simultaneously, how much time will be taken to fill the tank?
[ "A)20 hours", "B)15 hours", "C)10 hours", "D)12 hours", "E)7 4/9 hours" ]
E
aqua_train
aqua_train_22029
Jane started baby-sitting when she was 16 years old. Whenever she baby-sat for a child, that child was no more than half her age at the time. Jane is currently 32 years old, and she stopped baby-sitting 10 years ago. What is the current age of the oldest person for whom Jane could have baby-sat?
[ "A)20", "B)21", "C)22", "D)23", "E)24" ]
E
aqua_train
aqua_train_42370
One side of a triangle has length 5 and a second side has length 4. Which of the following could be the area of the triangle? I. 15 II. 10 III. 5
[ "A)I only", "B)II only", "C)III only", "D)II and III only", "E)I", "II and III" ]
D
aqua_train
aqua_train_38088
A certain company items price list has an average of 6 and a standard deviation of d (d is positive). Which of the following pairs of data when added to the list, must result in a list of 102 data with standard deviation less than d?
[ "A)(-6;0)", "B)(0;0)", "C)(0;6)", "D)(0;12)", "E)(6;6)" ]
E
aqua_train
aqua_train_81220
In a certain neighborhood, there are half as many beige houses as white houses, and 7 times as many white houses as brown houses. What is the ratio of the number of brown houses to the number of beige houses?
[ "A)3:5", "B)1:4", "C)3:1", "D)2:7", "E)5:2" ]
D
aqua_train
aqua_train_18782
In an examination, 40% candidates failed in one subject and 30% failed in another subject while 10% failed in both the subjects. If 100 candidates appeared at the end of the examination how many passed in either subject but not in both?
[ "A)50", "B)75", "C)60", "D)100", "E)40" ]
A
aqua_train
aqua_train_79987
There are six leopards and one sheep. Leopard can eat sheep but since as the land is magical, the leopards who eats the sheep , turns into sheep and then can be eaten by the remaining leopard(s). If we leave them for some time then how many sheep and leopard will be there , when we come back ?
[ "A)4 leopard and one sheep", "B)5 leopard and one sheep", "C)6 leopard and one sheep", "D)7 leopard and one sheep", "E)None" ]
B
science_train
science_train_3795
Question: Complete the statement. Aluminum is (). Hints:
[ "a compound", "an elementary substance" ]
B
aqua_train
aqua_train_30118
Find four consecutive even integers so that the sum of the first two added to twice the sum of the last two is equal to 772.
[ "A)120 ,122 ", "124 ,126", "B)120 ,122 ", "124 ,128", "C)120 ,121 ", "122 ,123", "D)125 ", "127 ,129", "131", "E)None of these" ]
D
aqua_train
aqua_train_15000
Solve This 6 + 7 = 12 8 + 9 = 16 5 + 6 = 10 7 + 8 = 14 Then, 9 + 10 = ??
[ "A)11", "B)12", "C)13", "D)14", "E)18" ]
E
aqua_train
aqua_train_69026
Two numbers N and 16 have LCM = 48 and GCF = 8. Find N.
[ "A)12", "B)32", "C)24", "D)46", "E)57" ]
C
aqua_train
aqua_train_51148
One computer can upload 100 megabytes worth of data in 5 seconds. Two computers, including this one, working together, can upload 1300 megabytes worth of data in 40 seconds. How long would it take for the second computer, working on its own, to upload 100 megabytes of data?
[ "A) 6", "B) 8", "C) 9", "D) 11", "E) 13" ]
B
aqua_train
aqua_train_44093
Two trains are moving in opposite directions at 60 km/hr and 90 km/hr. Their lengths are 1.50 km and 1.0 km respectively. The time taken by the slower train to cross the faster train in seconds is?
[ "A)48", "B)9", "C)7", "D)60", "E)15" ]
D
aqua_train
aqua_train_7100
In a consumer survey, 88% of those surveyed liked at least one of three products: 1, 2, and 3. 55% of those asked liked product 1, 40% liked product 2, and 20% liked product 3. If 7% of the people in the survey liked all three of the products, what percentage of the survey participants liked more than one of the three products?
[ "A)15", "B)20", "C)25", "D)30", "E)35" ]
B
aqua_train
aqua_train_51481
A producer of tea blends two varieties of tea from two tea gardens one costing Rs 18 per kg and another Rs 20 per kg in the ratio 5 : 3. If he sells the blended variety at Rs 22 per kg, then his gain percent is
[ "A)12%", "B)13%", "C)14%", "D)15%", "E)17%" ]
E
aqua_train
aqua_train_35557
Two numbers N and 16 have LCM = 48 and GCF = 8. Find N.
[ "A)12", "B)24", "C)36", "D)48", "E)52" ]
B
aqua_train
aqua_train_58385
N is the greatest number which divides 1305, 4665 and 6905 and gives the same remainder in each case. What is the sum of the digits in N?
[ "A)23", "B)28", "C)4", "D)1", "E)25" ]
C
aqua_train
aqua_train_70442
The difference between compound interest and simple interest on a certain amount of money at 5% per annum for 2 years is 17. Find the sum :
[ "A)4500", "B)7500", "C)5000", "D)6800", "E)None of these" ]
D
aqua_train
aqua_train_5632
5 nouns, 5 verbs and 3 adjectives are written on blackboard.we can form sentence by choosing 1 from each available set without caring it makes sense or not.what is the number of ways of doing this??
[ "A)360", "B)390", "C)420", "D)450", "E)540" ]
D
aqua_train
aqua_train_53566
Beginning in Town A, Biker Bob rides his bike 30 miles west, 6 miles north, 15 miles east, and then 18 miles north, to Town B. How far apart are Town A and Town B? (Ignore the curvature of the earth.)
[ "A)27 miles", "B)25 miles", "C)24 miles", "D)28.3 miles", "E)23 miles" ]
D
aqua_train
aqua_train_2369
6x − 18 = 6y 5y + 5x = 15 Which of the following is the number of solutions to the system of equations shown above?
[ "A)More than three", "B)Exactly three", "C)Exactly two", "D)Exactly one", "E)None" ]
D
aqua_train
aqua_train_71399
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 60 kmph, find the speed of the stream?
[ "A)18 kmph", "B)19 kmph", "C)21 kmph", "D)22 kmph", "E)20 kmph" ]
E
aqua_train
aqua_train_48271
Rose and Marry each have a bag of marbles, each of which contains 4 blue marbles, 10 red marbles, and 6 white marbles. If Rose and Marry each select one marble from their respective bags, what is the probability that either Rose or Marry select a red marble?
[ "A)3/7", "B)3/4", "C)1/4", "D)1/8", "E)1/16" ]
B
aqua_train
aqua_train_53579
Find the area of circle whose radius is 70m?
[ "A)28866", "B)23456", "C)76766", "D)16866", "E)15400" ]
E
aqua_train
aqua_train_21059
A man is walking at the rate of 7 km/hr crosses a bridge in 15 minutes. The length of the bridge is
[ "A)1000 meters", "B)1050 meters", "C)1200 meters", "D)1750 meters", "E)None of these" ]
D
aqua_train
aqua_train_8827
A certain truck uses 18 gallons of diesel fuel in traveling 250 miles. In order for the truck to travel the same distance using 10 gallons of diesel fuel, by how many miles per gallon must the truck’s fuel mileage be increased?
[ "A)8", "B)10", "C)12", "D)15", "E)27" ]
B
science_train
science_train_786
Question: Based on this information, what is this fly's phenotype for the wing type trait? Hints:
[ "normal wings", "vestigial wings" ]
B
aqua_train
aqua_train_35741
Martha has 3 dogs and 4 cats. She takes each animal separately for a daily walk. She can take the animals for a walk to the park or to the barber shop. How many different options for a walk with a single animal does Martha have?
[ "A)8", "B)9", "C)10", "D)14", "E)20" ]
D
aqua_train
aqua_train_67116
If sequence T is defined for all positive integers n such that t(n +1) = t(n) + n, and t 3 = 14, what is t 22?
[ "A)101", "B)187", "C)191", "D)201", "E)242" ]
E
sciq
sciq_4
What is the name of the process that changes some chemical substances into others?
[ "acid reaction", "mixture", "hypodermic reaction", "chemical reaction" ]
D
sciq
sciq_4
What does the placenta sustain during pregnancy?
[ "the heart", "the mother", "the endocrine system", "the fetus" ]
D
aqua_train
aqua_train_10630
If Rs.7500 are borrowed at C.I at the rate of 4% per annum, then after 2 years the amount to be paid is?
[ "A)81288", "B)2776", "C)3777", "D)8112", "E)2887" ]
D
sciq
sciq_4
What are the three types of rocks?
[ "igneous, sedimentary, mixed", "igneous, orbital, metamorphic", "opaque , sedimentary , metamorphic", "igneous, sedimentary, metamorphic" ]
D
aqua_train
aqua_train_80022
A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?
[ "A)283", "B)240", "C)883", "D)379", "E)123" ]
B
aqua_train
aqua_train_62360
A man leaves a point P at 6 a.m. and reaches the point Q at 10 a.m. another man leaves the point give at 8 a.m. and reaches the point P at 12 noon. At what time do they meet?
[ "A)6", "B)7", "C)9", "D)8", "E)5" ]
C
aqua_train
aqua_train_66636
6, 11, 21, 36, 56, 81, 111, ?
[ "A)512", "B)146", "C)812", "D)612", "E)912" ]
B
sciq
sciq_4
Hydrogen chloride contains one atom of hydrogen and one atom of what?
[ "magnesium", "calcium", "nitrogen", "chlorine" ]
D
aqua_train
aqua_train_70374
A watch passes through three hands and each gains 25%. If the 3rd sells it for Rs250, what did the 1st pay for it?
[ "A)120", "B)125", "C)128", "D)130", "E)154" ]
C
sciq
sciq_4
What works by providing a lower energy pathway from reactants to products?
[ "thermodynamics", "hormones", "magnetism", "catalyst" ]
D
aqua_train
aqua_train_34268
If 0 < x < 7 and 0 < y < 9, then the lowest possible value for xy is
[ "A)between 60 and 70", "B)between 0 and 60", "C)0", "D)between 0 and -70", "E)less than -70" ]
B
aqua_train
aqua_train_73527
What percentage of numbers from 1 to 60 have 1 or 9 in the unit's digit?
[ "A)12", "B)14.11", "C)18.33", "D)20", "E)21" ]
C
sciq
sciq_4
Photosynthesis produces oxygen as a byproduct, and respiration produces what as a byproduct?
[ "carbon monoxide", "nitrogen", "ozone", "carbon dioxide" ]
D
aqua_train
aqua_train_47249
The operation # is defined for all nonzero x and y by x#y = x + x/y. If S>0, then 1#(1#S) =
[ "A)S", "B)S+1", "C)S/(S+1)", "D)(S+2)/(S+1)", "E)(2S+1)/(S+1)" ]
E
sciq
sciq_4
After what life stage does the fusion inside a star end?
[ "blue giant", "yellow dwarf", "white dwarf", "red giant" ]
D
aqua_train
aqua_train_87701
Which of the following is equal to (x-1)!/(x-2)!?
[ "A)x-1", "B)1+(1/x)", "C)1", "D)x+1", "E)x-1" ]
E
sciq
sciq_4
What is the equation of power released?
[ "amplitude x current", "detonation x current", "uptake x current", "voltage x current" ]
D
aqua_train
aqua_train_39854
A car during its journey travels 30 minutes at a speed of 60 kmph, another 45 minutes at a speed of 60 kmph, and 2 hours at a speed of 80 kmph.The average speed of the car is
[ "A)63.07 kmph", "B)64 kmph", "C)72.30 kmph", "D)64.02 kmph", "E)None of these" ]
C
aqua_train
aqua_train_88670
power windows: 60% anti-lock brakes: 25% CD player: 60% The table above shows the number of vehicles at Bill's car dealership that have certain features. No vehicle has all three features, but 10% have power windows and anti-lock brakes, 15% have anti-lock brakes and a CD player, and 22% have power windows and a CD player. What percent of the vehicles at Bill's car dealership have a CD player but no power windows or anti-lock brakes?
[ "A)23", "B)18", "C)11", "D)3", "E)0" ]
A
aqua_train
aqua_train_87923
The perimeters of two squares are 40 cm and 32 cm. Find the perimeter of a third square whose area is equal to the difference of the areas of the two squares?
[ "A)76 cm", "B)24 cm", "C)88 cm", "D)55 cm", "E)34 cm" ]
B
aqua_train
aqua_train_32903
There are 1000 students in a school and among them 10 % of them attends chess class. 10% of the students who are in the chess class are also enrolled for swimming. No other students are interested in swimming so how many will attend the swimming class if all enrolled attends?
[ "A)1", "B)10", "C)100", "D)50", "E)20" ]
B
aqua_train
aqua_train_60088
Zn = 2Zn-1 + 4 and Qn = 4Qn-1 + 8 for all n > 1. If Z5 = Q4 and Z7 = 316, what is the first value of n for which Qn is an integer?
[ "A) 1", "B) 2", "C) 3", "D) 4", "E) 5" ]
C
aqua_train
aqua_train_29955
A shopkeeper has 280 kg of apples. He sells 30% of these at 20% profit and remaining 60% at 30% profit. Find his % profit on total.
[ "A)24%", "B)25%", "C)26%", "D)28%", "E)35%" ]
A
aqua_train
aqua_train_83444
Find the least number must be subtracted from 899830 so that remaining no.is divisible by 16?
[ "A)5", "B)8", "C)7", "D)6", "E)9" ]
D
aqua_train
aqua_train_31374
John throws a coin until a series of six consecutive heads or three consecutive tails appears. What is the probability that the game will end after the seventh throw?
[ "A)1/64", "B)2/16", "C)3/16", "D)7/16", "E)9/16" ]
A
aqua_train
aqua_train_38662
Find large number from below question The difference of two numbers is 1500. On dividing the larger number by the smaller, we get 6 as quotient and the 15 as remainder
[ "A)1797", "B)1250", "C)1540", "D)1600", "E)1635" ]
A
aqua_train
aqua_train_37863
The age of teacher is the same as the digit in the student's age, but in reverse order. In five years teacher will be twice as old as student will be then. what is the difference in their current age ?
[ "A)18", "B)12", "C)25", "D)13", "E)7" ]
A
aqua_train
aqua_train_3350
A tin is full of wine. Out of this tin, 4 gallons of wine are taken out and 4 gallons of water are added. After this 4 gallons of mixture were taken out and again 4 gallons of water were added. Now the ratio of wine and water in the tin becomes 36:13. Find the volume of tin.
[ "A)25", "B)26", "C)27", "D)28", "E)29" ]
D
aqua_train
aqua_train_69424
A is a working partner and B is a sleeping partner in the business. A puts in Rs.2000 and B Rs.3000, A receives 10% of the profit for managing the business the rest being divided in proportion of their capitals. Out of a total profit of Rs.9600, money received by A is?
[ "A)1978", "B)2707", "C)7728", "D)4416", "E)7291" ]
D
sciq
sciq_4
Changes from a less-ordered state to a more-ordered state (such as a liquid to a solid) are always what?
[ "unbalanced", "reactive", "endothermic", "exothermic" ]
D
aqua_train
aqua_train_12751
In how many ways can you seat 6 people on a bench if one of them does not want to sit at either end?
[ "A)360", "B)400", "C)440", "D)480", "E)520" ]
D