dataset
stringclasses
5 values
id
stringlengths
6
18
question
stringlengths
3
1.92k
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answer
stringclasses
5 values
aqua_train
aqua_train_59649
The difference between two positive numbers is 10 and the ratio between them is 5:3. Find the product of the two numbers.
[ "A)375", "B)175", "C)275", "D)125", "E)250" ]
A
aqua_train
aqua_train_88543
The average amount with a group of seven numbers is Rs. 20. If the newly joined member has Rs. 14 with him, what was the average amount with the group before his joining the group?
[ "A)s.17", "B)s.20", "C)s.15", "D)s.21", "E)s.19" ]
D
aqua_train
aqua_train_36574
A worker is paid x rupees for painting every 10 metres of a wall and y rupees for painting every extra metre. During one week, he painted 10 metres on Monday, 13 metres on Tuesday, 12 metres on Wednesday, 11 metres on Thursday and 12 metres on Friday. What is his average daily earning rupees for the five day week?
[ "A)x + (8/5)y", "B)(5x + 9y)/5", "C)10x + (8/5)y", "D)None of these", "E)Cannot be determined" ]
A
aqua_train
aqua_train_85781
Let n~ be defined for all positive integers n as the remainder when (n - 1)! is divided by n. What is the value of 35~ ?
[ "A)0", "B)1", "C)2", "D)8", "E)31" ]
A
aqua_train
aqua_train_63415
The tax on a commodity is diminished by 20% but its consumption is increased by 10%. Find the decrease percent in the revenue derived from it?
[ "A)12%", "B)14%", "C)16%", "D)20%", "E)22%" ]
A
aqua_train
aqua_train_57704
Aishwarya was first to board to her flight to delhi. She forgot her seat number and picks a random seat for herself. After this, every single person who get to the flight sits on his seat if its available else chooses any available seat at random. Abhishek is last to enter the flight and at that moment 99/100 seats were occupied. Whats the probability what Abhishek gets to sit in his own seat ?
[ "A)1/2", "B)3/2", "C)3/2", "D)2/2", "E)5/2" ]
A
aqua_train
aqua_train_81803
There are 640 students in a school. The ratio of boys and girls in this school is 3:5. Find the total of girls & boys are there in this school?
[ "A)320", "B)345", "C)375", "D)380", "E)400" ]
E
aqua_train
aqua_train_60444
A boy goes to a playground from the house at 5 km/hr by 10 minute late. If he goes at 6 km/hr. he would be 5 minutes early. What is the distance of the of playground from his house ?
[ "A)7.5 km", "B)8 km", "C)10 km", "D)12 km", "E)None of these" ]
A
aqua_train
aqua_train_91807
P is 6 times greater than Q then by what per cent is Q smaller than P?
[ "A)84%", "B)85.5%", "C)80%", "D)83.33%", "E)None" ]
D
aqua_train
aqua_train_50339
A and B undertake to do a piece of work for $120. A alone can do it in 4days while B alone can do it in 6days. With the help of C, they finish it in 2days. Find the share of B?
[ "A)$150", "B)$100", "C)$200", "D)$50", "E)$40" ]
E
aqua_train
aqua_train_79051
Find how many positive integers less than 10,000 are there suchthat the sum of the digits of the no. is divisible by 3?
[ "A)1324", "B)1456", "C)1567", "D)3334", "E)2346" ]
D
aqua_train
aqua_train_18636
What will be the compound interest earned on an amount of Rs. 5000 in 2 years? I. The simple interest on the same amount at the same rate of interest in 5 years is Rs. 2000. II. The compound interest and the simple interest earned in one year is the same. III. The amount becomed more than double on compound interest in 10 years.
[ "A)I only", "B)I and II only", "C)II and III only", "D)I and III only", "E)None of these" ]
A
aqua_train
aqua_train_15969
A train moves fast a telegraph post and a bridge 264 m long in 8 sec and 20 sec respectively. What is the speed of the train?
[ "A)79.7", "B)79.8", "C)76.2", "D)79.2", "E)29.2" ]
D
aqua_train
aqua_train_97127
Sushil got thrice as many marks in English as in Science. His total marks in English, Science and Maths are 162. If the ratio of his marks in English and Maths is 3:5, find his marks in Science?
[ "A)18", "B)68", "C)67", "D)55", "E)56" ]
A
aqua_train
aqua_train_24690
The ratio of ages of Aman, Bren, and Charlie are in the ratio 5:8:7 respectively. If 5 years ago, the sum of their ages was 75, what will be the age of Aman 10 years from now?
[ "A)17", "B)25", "C)27", "D)35", "E)40" ]
B
aqua_train
aqua_train_77628
A boatman rows 96 km downstream in 8 hours with a stream speed of 4kmph. How much time will he take to cover 8km upstream?
[ "A)2 hours", "B)8 hours", "C)6 hours", "D)7 hours", "E)9 hours" ]
A
aqua_train
aqua_train_54827
A number when divided by 779 gives a remainder 47. By dividing the same number by 19, what would be the remainder?
[ "A)9", "B)8", "C)7", "D)6", "E)5" ]
A
aqua_train
aqua_train_62724
A wooden cube whose edge length is 7 inches is composed of smaller cubes with edge lengths of one inch. The outside surface of the large cube is painted red and then it is split up into its smaller cubes. If one cube is randomly selected from the small cubes, what is the probability that the cube will have at least one red face?
[ "A)59.8%", "B)63.6%", "C)67.2%", "D)70.5%", "E)73.6%" ]
B
aqua_train
aqua_train_10111
In an election between the two candidates ,The candidates who gets 60% of votes polled is wined by 280 votes majority. What is the total number of votes polled?
[ "A)1400", "B)1500", "C)1550", "D)1600", "E)1650" ]
A
aqua_train
aqua_train_81818
Two trains each 250 m in length are running on the same parallel lines in opposite directions with the speed of 80 kmph and 60 kmph respectively. In what time will they cross each other completely?
[ "A)15 sec", "B)19 sec", "C)12 sec", "D)12.9 sec", "E)11 sec" ]
D
aqua_train
aqua_train_93830
There are 28 balls which are red, blue or green. If 12 balls are green and the sum of red balls and green balls is less than 24, at most how many red balls are there?
[ "A)10", "B)12", "C)11", "D)13", "E)14" ]
C
aqua_train
aqua_train_53896
A certain ball team has an equal number of right- and left-handed players. On a certain day, one-third of the players were absent from practice. Of the players at practice that day, one-third were left handed. What is the ratio of the number of right-handed players who were not at practice that day to the number of lefthanded players who were not at practice?
[ "A)1/5", "B)2/3", "C)5/7", "D)7/5", "E)3/2" ]
A
aqua_train
aqua_train_29297
Ajith can do a work in 12 days while Anand can do the same work in 18days. Both of them finish the work together and get $500. What is the share of Ajith?
[ "A)$150", "B)$200", "C)$350", "D)$250", "E)$300" ]
E
aqua_train
aqua_train_93018
What is the sum of the integers from -185 to 195 inclusive?
[ "A)0", "B)5", "C)375", "D)1905", "E)965" ]
D
sciq
sciq_4
How do plants support themselves above the ground to get light and oxygen?
[ "momentum", "flaccid stems", "symbiosis", "stiff stems" ]
D
aqua_train
aqua_train_45732
The speed of a boat in still water is 60kmph and the speed of the current is 20kmph. Find the speed downstream and upstream?
[ "A)75", "B)40", "C)77", "D)26", "E)21" ]
B
aqua_train
aqua_train_18700
An amount of money is to be divided between P, Q and R in the ratio of 3:7:12. If the difference between the shares of P and Q is Rs.2400, what will be the difference between Q and R's share?
[ "A)2211", "B)3000", "C)2772", "D)1211", "E)1321" ]
B
aqua_train
aqua_train_86906
In how many ways letters of the word DATA be arranged?
[ "A)6", "B)18", "C)12", "D)6", "E)2" ]
C
science_train
science_train_1916
Question: Is Acanthaster planci made up of many cells? Hints:
[ "yes", "no" ]
A
science_train
science_train_1394
Question: Will these magnets attract or repel each other? Hints:
[ "repel", "attract" ]
A
aqua_train
aqua_train_88143
Alice walked for 3 days. She walked 18 miles on the first day, walking 3 miles per hour. On the second day she walked for one less hour but she walked one mile per hour, faster than on the first day. On the third day she walked the same number of hours as on the first day, but at the same speed as on the second day. How many miles in total did she walk?
[ "A)24", "B)44", "C)58", "D)60", "E)62" ]
E
aqua_train
aqua_train_52538
|x+3| – |4-x| = |8+x| How many U solutions will this equation have?
[ "A)0", "B)1", "C)2", "D)3", "E)4" ]
A
aqua_train
aqua_train_74555
5 ltr of water is added with 15 ltr of a solution containing 26%of alcohol in the water. The %of alcohol in the new mixture is?
[ "A)17.25%", "B)19", "C)19.5%", "D)21.5%", "E)22%" ]
C
aqua_train
aqua_train_12033
If the selling price of 50 articles is equal to the cost price of 25 articles, then the loss or gain percent is:
[ "A)45%", "B)23%", "C)20%", "D)60%", "E)50%" ]
E
aqua_train
aqua_train_86412
In a 240 meters race A beats B by 56 m or 7 seconds. A's time over the course is:
[ "A)23 seconds", "B)12 seconds", "C)10 seconds", "D)18 seconds", "E)28 seconds" ]
A
aqua_train
aqua_train_25724
What approximate value should come in place of the question mark (?) in the following equation? 1.542 Γ— 2408.69 + 8134.632 = ?
[ "A)14600", "B)11800", "C)12030", "D)16400", "E)13600" ]
B
aqua_train
aqua_train_21500
A train 540 meters long is running with a speed of 54 kmph. The time taken by it to cross a tunnel 180 meters long is?
[ "A)40", "B)48", "C)45", "D)50", "E)25" ]
B
aqua_train
aqua_train_77360
The sum of ages of 5 girls born at the intervals of 3 years each is 50 years. What is the age of the youngest girl?
[ "A)4 years", "B)5 years", "C)6 years", "D)8 years", "E)9 years" ]
A
aqua_train
aqua_train_74079
In a triangle ABC,point D is on side AB and point E is on side AC,such that BCED is a trapezium.DE:BC =3:5.Calculate the ratio of the area of triangle ADE and the trapezium BCED.
[ "A)9/16", "B)8/16", "C)7/16", "D)6/16", "E)5/16" ]
A
aqua_train
aqua_train_65936
Find the least number must be subtracted from 5264 so that remaining number is divisible by 17.
[ "A)11", "B)14", "C)18", "D)20", "E)29" ]
A
aqua_train
aqua_train_19644
How many even integers from 1 to 100 (both inclusive) have EVEN number of factors?
[ "A)13", "B)14", "C)5", "D)6", "E)7" ]
C
aqua_train
aqua_train_45706
The sum of three consecutive multiples of 3 is 108. What is the largest number?
[ "A)36", "B)39", "C)33", "D)30", "E)42" ]
B
aqua_train
aqua_train_29731
A shopkeeper expects a gain of 22.5% on his cost price. If in a week, his sale was of Rs. 392, what was his profit?
[ "A)Rs 72", "B)Rs 88.20", "C)Rs 79.15", "D)Rs 93", "E)Rs 97" ]
A
sciq
sciq_4
What is found inside the pores of spongy bone?
[ "liquid marrow", "rupture marrow", "green marrow", "bone marrow" ]
D
aqua_train
aqua_train_56785
Thirty percent of a number is 21 less than four fifth of that number. What is the number ?
[ "A)42", "B)40", "C)230", "D)130", "E)125" ]
A
aqua_train
aqua_train_47251
The larger of two negative consecutive even integers 2t and 2(t-1) is multiplied by 4 and then added to the smaller of the two original integers. Which of the following represents this operation?
[ "A)6t-2", "B)10t-2", "C)-2", "D)3", "E)-2-4t^2" ]
B
aqua_train
aqua_train_2228
8, 24, 12, 36, 18, 54, (....)
[ "A)72", "B)68", "C)108", "D)27", "E)86" ]
D
science_train
science_train_2784
Question: Which material is this clothespin made of? Hints:
[ "porcelain", "metal" ]
B
aqua_train
aqua_train_30133
Which one of the following is a prime number?
[ "A)45", "B)90", "C)81", "D)29", "E)91" ]
D
sciq
sciq_4
What kind of fibers are used to transport telephone and television signals?
[ "touch fibers", "process fibers", "hair fibers", "optical fibers" ]
D
aqua_train
aqua_train_60064
The length of the rectangular field is double its width. Inside the field there is square shaped pond 8m long. If the area of the pond is 1/8 of the area of the field. What is the length of the field?
[ "A)54", "B)32", "C)75", "D)28", "E)11" ]
B
aqua_train
aqua_train_30420
Which of the following is equal to (n – 3)2*square* if n = 11?
[ "A)(n + 6)(n – 6)", "B)(n + 5)(n – 7)", "C)(n + 4)(n – 8)", "D)(n + 3)(n – 9)", "E)(n + 2)(n – 10)" ]
B
aqua_train
aqua_train_1839
Together, 15 type A machines and 7 type B machines can complete a certain job in 4 hours. Together 8 type B machines and 15 type C machines can complete the same job in 11 hours. How many hours R would it take one type A machine, one type B machine, and one type C machine working together to complete the job (assuming constant rates for each machine)?
[ "A) 22 hours", "B) 30 hours", "C) 44 hours", "D) 60 hours", "E) It cannot be determined from the information above." ]
C
aqua_train
aqua_train_90687
A can run 2 km distance in 2 min., while B can run this distance in 2 min 40 sec. By how much distance can A beat B?
[ "A)150 m", "B)100 m", "C)500 m", "D)180 m", "E)190 m" ]
C
aqua_train
aqua_train_97122
An design manager has 10patterns of chairs & 9patterns of tables. In how many ways can he make a pair of table & chair?
[ "A)20", "B)40", "C)80", "D)90", "E)100" ]
D
aqua_train
aqua_train_41757
Pipe A can fill a tank in 5 hours, pipe B in 10 hours and pipe C in 30 hours. If all the pipes are open, in how many hours will the tank be filled?
[ "A)2", "B)2.5", "C)3", "D)3.5", "E)None" ]
C
aqua_train
aqua_train_29318
There are 408 boys and 288 girls in a school which are to be divided into equal sections of either boys or girls alone. Find the total number of sections thus formed.
[ "A)31", "B)32", "C)35", "D)30", "E)29" ]
E
aqua_train
aqua_train_33394
Car A runs at the speed of 65km/hr & reaches its destination in 8hr. Car B runs at the speed of 75 km/h & reaches its destination in 4h. What is the respective ratio of distances covered by Car A & Car B?
[ "A)26 : 15", "B)12 : 7", "C)13 : 7", "D)15 : 6", "E)13 : 6" ]
A
aqua_train
aqua_train_49573
The number of permutations of the letters of the word 'MESMERISE' is?
[ "A)9!/(2!)2 3!", "B)6!/(2!)2 3!", "C)9!/(7!)2 3!", "D)7!/(2!)2 9!", "E)9!/(2!)4 3!" ]
A
aqua_train
aqua_train_36094
R campers fished for 2 hours. If m of the campers caught 2 fish apiece and the rest caught a combined total of n fish, how many fish did the R campers catch per hour?
[ "A)2m + n(R-m)", "B)(2m + n(R-m))/3", "C)(2m + n(m-R))/3", "D)(2m + n)/2", "E)(2m + n)/R" ]
D
aqua_train
aqua_train_92933
A person purchased a TV set for Rs. 13000 and a DVD player for Rs. 6250. He sold both the items together for Rs. 31150. What percentage of profit did he make?
[ "A)16.82%", "B)87.82%", "C)61.82%", "D)17.82%", "E)18.82%" ]
C
sciq
sciq_4
When two plates of continental crust collide, the material pushes upward and forms what?
[ "fault lines", "valleys", "low mountain range", "high mountain range" ]
D
aqua_train
aqua_train_75130
In what time a sum of money double itself at 3% per annum simple interest?
[ "A)33 1/8%", "B)33 1/3%", "C)33 3/3%", "D)33 1/7%", "E)32 1/3%" ]
B
aqua_train
aqua_train_40308
The average age of the boys in a class is 16 years and that of the girls is 15 years. The average age for the whole class is
[ "A)22", "B)88", "C)27", "D)99", "E)11" ]
C
aqua_train
aqua_train_11532
There are 28 stations between Ernakulam and Chennai. How many second class tickets have to be printed, so that a passenger can travel from one station to any other station?
[ "A)800", "B)820", "C)850", "D)870", "E)900" ]
D
aqua_train
aqua_train_25545
If the mean of numbers 28, x, 42, 78 and 104 is 62, what is the mean of 48, 62, 98, 124 and x?
[ "A)78", "B)58", "C)390", "D)310", "E)66" ]
A
aqua_train
aqua_train_88435
The sum of three consecutive even numbers is 36. Find the middle number of the three?
[ "A)14", "B)16", "C)18", "D)24", "E)36" ]
E
science_train
science_train_3290
Question: Complete the sentence. Rain forming in a cloud is a (). Hints:
[ "physical change", "chemical change" ]
A
aqua_train
aqua_train_34300
The H.C.F. of two numbers is 25 and the other two factors of their L.C.M. are 14 and 16. The larger of the two numbers is
[ "A)276", "B)299", "C)312", "D)400", "E)None" ]
D
aqua_train
aqua_train_70424
Ice-ColdIce-cream factory produces only tricolor ice-cream products, where each ice-cream has three stripes of different colors. The factory uses the colors pink, purple, orange, silver, blue and GRAY. How many different ice-cream products have at least one stripe out of the following colors: pink, purple or orange (assume that the order of the stripes in a single ice-cream does not matter)?
[ "A)12", "B)14", "C)18", "D)19", "E)20" ]
D
sciq
sciq_4
What is the process called when secretory cells export products?
[ "endocytosis", "isolation", "morphogenesis", "exocytosis" ]
D
aqua_train
aqua_train_484
Find the largest number of four digits which is exactly divisible by 27,18,12,15
[ "A)9700", "B)9710", "C)9720", "D)9730", "E)None of these" ]
C
aqua_train
aqua_train_92794
A pupil's marks were wrongly entered as 83 instead of 63. Due to that the average marks for the class got increased by half (1/2). The number of pupils in the class is:
[ "A)32", "B)50", "C)40", "D)20", "E)10" ]
C
aqua_train
aqua_train_81346
In a certain animal population, for each of the first 3 months of life, the probability that an animal will die during that month is 1/10. For a group of 300 newborn members of the population, approximately how many would be expected to survive the first 3 months of life?
[ "A)219", "B)246", "C)252", "D)262", "E)270" ]
A
aqua_train
aqua_train_65492
Find the number of ways a batsman can score a double century only in terms of 4's & 6's? Assume the batsman scored x 4's and y 6's.
[ "A)22", "B)16", "C)77", "D)91", "E)13" ]
B
aqua_train
aqua_train_89837
A and B enter into partnership with capital as 7:9. At the end of 8 months, A withdraws. If they receive the profits in the ratio of 8:9 find how long B's capital was used?
[ "A)6 months", "B)8 months", "C)10 months", "D)7 months", "E)9 months" ]
D
science_train
science_train_5787
Question: Using only these supplies, which question can Bruce investigate with an experiment? Hints:
[ "Do watercolor paintings dry faster when they are placed inside or outside?", "Does a large watercolor painting or a small watercolor painting dry faster?", "Do watercolor paintings dry faster when placed next to a fan?" ]
A
aqua_train
aqua_train_6955
A tour group of 25 people paid a total of $630 for entrance to a museum. If this price included a 5% sales tax, and all the tickets cost the same amount, what was the face value of each ticket price without the sales tax? Choices
[ "A)$22", "B)$23.94", "C)$24", "D)$25.20", "E)$30" ]
C
aqua_train
aqua_train_43144
find the number, difference between number and its 3/5 is 60.
[ "A)150", "B)153", "C)154", "D)155", "E)156" ]
A
science_train
science_train_1086
Question: Will these magnets attract or repel each other? Hints:
[ "attract", "repel" ]
B
aqua_train
aqua_train_65926
Lion, rat stay in jungle happily. Lion lies on: Mon, Tue, Wed. Rat lies on: Wed, Thurs , Sat. If lion says: I didn't lie yesterday. Rat says: I didn’t lie yesterday. So what day is today?
[ "A)Tuesday", "B)wednesday", "C)Thursday", "D)Friday", "E)Sunday" ]
A
aqua_train
aqua_train_5110
The pages of a report are numbered consecutively from 1 to 9. If the sum of the page numbers up to and including page number x of the report is equal to THREE less than the sum of the page numbers following page number x, then x =
[ "A)4", "B)5", "C)6", "D)7", "E)8" ]
C
aqua_train
aqua_train_83065
Lucy deposited $62500 in an investment fund that provided 20 percent annual return compounded quarterly. If she made no other transactions with the fund, in how much time, in months, did her investment earn a total interest of $5100?
[ "A)0.5", "B)2.4", "C)3", "D)6", "E)6.1" ]
B
aqua_train
aqua_train_27176
28, 26, 21, 19, 14, 12, ?
[ "A)3", "B)2", "C)8", "D)7", "E)5" ]
D
aqua_train
aqua_train_11411
A = {2, 3, 4, 5} B = {4, 5, 6, 7, 8} Two integers will be randomly selected from the sets above, one integer from set A and one integer from set B. What is the probability that the sum of the two integers will equal 9 ?
[ "A)0.15", "B)0.2", "C)0.25", "D)0.3", "E)0.33" ]
B
sciq
sciq_4
The genes that code for the positive cell cycle regulators are called what?
[ "stem cell genes", "primary genes", "ribosomes", "proto-oncogenes" ]
D
aqua_train
aqua_train_7902
12,21,48,87,__
[ "A)176", "B)186", "C)184", "D)174", "E)164" ]
B
aqua_train
aqua_train_85078
How many zeros does 500! end with?
[ "A)201", "B)240", "C)124", "D)125", "E)180" ]
C
aqua_train
aqua_train_8620
The workforce of Company Samsung is 60% female. The company hired 20 additional male workers, and as a result, the percent of female workers dropped to 50%.How many employees did the company have after hiring the additional male workers?
[ "A)180", "B)170", "C)160", "D)150", "E)145" ]
E
aqua_train
aqua_train_94898
Find the remainder T when 12^190 is divided by 1729 ?
[ "A)12", "B)1", "C)1728", "D)1717", "E)4" ]
D
sciq
sciq_4
Plants and algae maintain the atmosphere. during photosynthesis, they add oxygen and remove what?
[ "water", "nitrogen", "methane", "carbon dioxide" ]
D
aqua_train
aqua_train_59506
A sum of money deposited at C.I. amounts to Rs.2420 in 2 years and to Rs.3025 in 3 years. Find the rate percent?
[ "A)11", "B)10", "C)28", "D)25", "E)82" ]
D
aqua_train
aqua_train_29764
If X is the sum of first 20 positive even integers and Y is the sum of first 20 positive odd integers, what is the value of x-y? Please try to explain your answers
[ "A)0", "B)20", "C)50", "D)75", "E)100" ]
B
aqua_train
aqua_train_79896
Machine A can process 6000 envelopes in 3 hours. Machines B and C working together but independently can process the same number of envelopes in 2.5 hours. If Machines A and C working together but independently process 3000 envelopes in 1 hour, then how many hours would it take Machine B to process 2800 envelopes.
[ "A)2", "B)3", "C)4", "D)6", "E)60/7" ]
A
aqua_train
aqua_train_45642
How many integers V are prime numbers in the range 200 < V < 220?
[ "A) 1", "B) 2", "C) 3", "D) 4", "E) 5" ]
A
aqua_train
aqua_train_5944
3, 4, 6, 10, 18, (...)
[ "A)22", "B)34", "C)27", "D)32", "E)25" ]
B
aqua_train
aqua_train_87841
Special codes are designated by either a 5-letter or a 6-letter code that is created by using the 26 letters of the alphabet. Which of the following gives the maximum number of different codes that can be designated with this system?
[ "A)2 (26)^6", "B)26(26)^5", "C)27(26)^5", "D)26(26)^6", "E)27(26)^6" ]
C
aqua_train
aqua_train_36332
A retail store sells higher end dresses for $40 each and lower end dresses for $20 each. On every higher end dress the retail store makes a profit of $4 while on every lower end dress it makes a profit of $1. If on a given day the store's sales amounted to $400, which of the following cannot be the profit made on that day?
[ "A)$26", "B)$27", "C)$30", "D)$34", "E)$40" ]
B
aqua_train
aqua_train_19715
In the faculty of Reverse-Engineering, 226 second year students study numeric methods, 423 second year students study automatic control of airborne vehicles and 134 second year students study them both. How many students are there in the faculty if the second year students are approximately 75% of the total?
[ "A)515.", "B)545.", "C)618.", "D)687.", "E)666." ]
D
aqua_train
aqua_train_93781
A tap can fill a tank in 10 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?
[ "A)5hr 45min", "B)6hr 30min", "C)4hr", "D)3hr 25min", "E)2hr 10min" ]
A