All competitive exams have a Quantitative Aptitude and Numerical Ability part. Pipes and Cisterns problems are an essential section under “Time and Work” type of questions. We are providing some Sample Questions for Pipes and Cisterns Problems with Solutions at the end of the page.

Try to attempt them in the minimum possible time. Practice with more questions and you will be perfect in no time.

Pipes and Cisterns Problems

1. 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

2. To fill a cistern, pipes A, B, and C takes 20 minute, 15 minutes and 12 minutes respectively. The time in minutes that the three pipes together will take to fill the cistern, is:

(a) 5

(b) 10

(c) 12

(d) 15 2/3

3. A tank can be filled by a tap in 20 minutes and by another tap in 60 minutes. Both the taps are kept open for 10 minutes and then the first tap is shut off. After this, the tank will be completely filled in:

(a) 10 minutes

(b) 12 minutes

(c) 15 minutes

(d) 20 minutes

4. A cistern can be filled in 9 hours but it takes 10 hours due to a leak in its bottom. If the cistern is full, then the time that the leak will take to empty it, is:

(a) 60 hours

(b) 70 hours

(c) 80 hours

(d) 90 hours

5. Bucket P has thrice the capacity as bucket Q. It takes 60 turns for bucket P to fill the empty drum. How many turns it will take for both the buckets P and Q, having each turn together to fill the empty drum?

(a) 30

(b) 40

(c) 45

(d) 90

The answers are given below. Like this page to show the answers.

Pipes and Cisterns Problems - Solutions

1. c, 2. a, 3. d, 4. d, 5. c


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