Q1

Q1 A pipe can fill a bucket in 5 hours but due to a hole at the bottom it takes 6 hours to fill the bucket. How much time will it take to empty the bucket if it was full?

25 hours

30 hours

35 hours

40 hours

Q2

Q2 Pipe A and B can fill a tank in 15 minutes and 10 minutes respectively. Pipe C can empty the tank in 5 minutes. Pipe A and B are opened simultaneously and after 4 minute pipe C is also opened. In what time the tank will be emptied?

25 mins

30 mins

35 mins

20 mins

Q3

Q3 Two pipes A and B can fill a cistern in 4 hrs. Had they been opened separately, then B would have taken 6 hrs more than A to fill the cistern. How much time will be taken by A to fill the cistern separately?

1 hour

2 hours

6 hours

8 hours

Q4

Q4 Two pipes A and B can fill a tank in 36 minutes and 45 minutes, another pipes C can empty the tank in 30 minutes. Pipes A and B are opened first and then 7 minutes later pipes C is also opened. Find the time taken to fill the tank.

40 mins

35 mins

42 mins

46 mins

Q5

Q5 Two pipes A and B can fill a tank in 24 minutes and 32 minutes respectively. If both the pipes are opened simultaneously, after how much time should B be closed so that the tank is full in 18 minutes?

4 mins

2 mins

8 mins

6 mins

Q6

Q6 Two pipes can fill a small tank in 7 hr and 8 hr respectively. A leakage was found when two pipes are opened simultaneously and due to leakage it took 16 min more to fill it up. How much time the leakage will take to empty the full tank?

56 hour

58 hours

50 hours

112 hours

Q7

Q7 Two pipes fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 min. The capacity of the tank is?

60 gallons

100 gallons

120 gallons

180 gallons

Q8

Q8 Three pipes A, B and C can fill a tank in 6 hours together. All three pipes are opened for 2 hours, and then pipe C is closed. Remaining part of the tank is filled by pipes A and B in 7 hour. How much time will pipe C take to fill the empty tank alone?

10

12

14

16

Q9

Q9 Work efficiency of pipe B is 2 times of pipe A and work efficiency of pipe C is 2 times of pipe B. All the three pipes A, B and C can fill a cistern in 5 hours. Find the time taken by pipe A to fill the cistern alone.

40 hours

30 hours

35 hours

50 hours

Q10

Q10 There are three Taps A, B and C in a tank. They can fill the tank in 10 hrs, 20 hrs and 25 hrs respectively. At first, all of them are opened simultaneously. Then after 2 hours, tap C is closed and A and B are kept running. After the 4th hour, tap B is also closed. The remaining work is done by Tap A alone. Find the percentage of the work done by Tap A.

70 %

62 %

80 %

72 %

## Practice Pipes and Cistern Questions & Answers

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