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Pipes and Cisterns Quiz 1

Question 1

Time: 00:00:00
A cistern filled in 40 hours by three pipes A, B, and C. Pipe C is twice as fast as B and B is thrice as fast as A. How much time will pipe A alone take to fill the tank?

405 hrs

405 hrs

352 hrs

352 hrs

400 hrs

400 hrs

Cannot be determined

Cannot be determined

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Question 2

Time: 00:00:00
Three taps P,Q and R can fill a tank in \frac{1}{6}hr, \frac{1}{3}hr and \frac{1}{2}hr respectively. If P is open all the time and Q and R are open for one hour each alternately, then the tank will be full in :

7 hrs

7 hrs

12 hrs

12 hrs

9 hrs

9 hrs

15 hrs

15 hrs

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Question 3

Time: 00:00:00
Two taps M and N can separately fill a cistern in 60 and 40 minutes respectively. They started to fill a cistern together but tap M is turned off after a few minutes and tap N fills the rest part of the cistern in 5 minutes. After how many minutes was tap M turned off?

21 min

21 min

25 min

25 min

30 min

30 min

18 min

18 min

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Question 4

Time: 00:00:00
Two pipes A and B can fill a tank in 40 and 32 hours respectively. Pipe B alone is kept open for 1/4 of time and both pipes are kept open for the remaining time. In how many hours, the tank will be full?

24 hrs

24 hrs

11 hrs

11 hrs

15 hrs

15 hrs

20 hrs

20 hrs

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Question 5

Time: 00:00:00
Sir Issac Newton is figuring out a problem in which Three taps A, B, and C can fill a tank in 12,15, and 20 hours respectively. If A is open all the time and B,C is open for one hour each alternatively, the tank will be full in:

3 hrs

3 hrs

8 hrs

8 hrs

7 hrs

7 hrs

11 hrs

11 hrs

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Question 6

Time: 00:00:00
One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 72 min, then the slower alone will be able to fill the tank in:

288 minutes

288 minutes

211 minutes

211 minutes

180 minutes

180 minutes

255 minutes

255 minutes

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Question 7

Time: 00:00:00
One fill pipe A is 3 times faster than second fill pipe B and takes 64 minutes less than the fill pipe B. When will the cistern be full if both pipes are opened together?

21 min

21 min

24 min

24 min

32 min

32 min

45 min

45 min

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Question 8

Time: 00:00:00
Two outlet pipes A and B are connected to a full tank. Pipe A alone can empty the tank in 40 minutes and pipe B alone can empty the tank in 2hrs. If both are opened together, how much time will it take to empty the tank completely?

15 minutes

15 minutes

18 minutes

18 minutes

30 minutes

30 minutes

50 minutes

50 minutes

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Question 9

Time: 00:00:00
Two taps A and B can separately fill a cistern in 2hr and 80 minutes respectively. They started to fill a cistern together but tap A is turned off after a few minutes and tap B fills the rest part of the cistern in 5 minutes. After how many minutes was tapped A turned off?

45 min

45 min

32 min

32 min

25 min

25 min

18 min

18 min

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Question 10

Time: 00:00:00
A and B are two taps that can fill a tank individually in 40 min and 80 min respectively. However, there is a leakage at the bottom, which can empty a filled tank in 160 min. If the tank is empty initially, how much time will both the taps take to fill the tank(leakage is still there)?

32 min

32 min

23 min

23 min

30 min

30 min

55 min

55 min

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