Here is solved questions of problems on Pipes and Cisterns [quantitative aptitude] for SBI PO and IBPS exams. Pipes and Cisterns related questions are asked in almost all entrance examinations and
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### Pipes and Cisterns [Quantitative Aptitude] Model Test Paper - 1

### Maximum Marks: 10 / Duration: 10 Mins

**Q.1. Two pipes can fill a tank in 45 and 60 minutes respectively, if both pipes are used together, then how long will it take to fill the tank?**

A) 36

B) 36 2/5

C) 25

D) 25 3/7

E) None of these

B) 36 2/5

C) 25

D) 25 3/7

E) None of these

**Explanation (Show/Hide)**

**Q.2. Pipes A and B can fill a tank in 5 and 6 hours respectively. Pipe C can empty it in 12 hours. If all the three pipes are opened together, then the tank will be filled in:**

A) 1 13/17 hr

B) 2 8/11 hr

C) 3 9/17 hr

D) 4 1/2 hr

E) None of these

B) 2 8/11 hr

C) 3 9/17 hr

D) 4 1/2 hr

E) None of these

**Explanation (Show/Hide)**

**Q.3. 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 be tank be filled?**

A) 2 hours

B) 2.5 hours

C) 3 hours

D) 3.5 hours

E) None of these

B) 2.5 hours

C) 3 hours

D) 3.5 hours

E) None of these

**Explanation (Show/Hide)**

**Q.4. Two pipes can 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 minutes. The capacity of the tank is:**

A) 60 gallons

B) 100 gallons

C) 120 gallons

D) 180 gallons

E) None of these

B) 100 gallons

C) 120 gallons

D) 180 gallons

E) None of these

**Explanation (Show/Hide)**

**Q.5. A pump can fill a tank with water in 2 hours. Because of a leak, it took 2 1/3 hours to fill the tank. The leak can drain all the water of the tank in:**

A) 4 hours

B) 7 hours

C) 8 hours

D) 14 hours

E) None of these

B) 7 hours

C) 8 hours

D) 14 hours

E) None of these

**Explanation (Show/Hide)**

**Q.6. Two pipes A and B can fill a cistern in 37 1/2 minutes and 45 minutes respectively. Both pipes are opened. The cistern will be filled in just half an hour, if the B is turned off after:**

A) 5 min

B) 9 min

C) 12 min

D) 15 min

E) None of these

B) 9 min

C) 12 min

D) 15 min

E) None of these

**Q.7. One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 minutes, then the slower pipe alone will be able to fill the tank in:**

A) 81 min

B) 108 min

C) 144 min

D) 192 min

E) None of these

B) 108 min

C) 144 min

D) 192 min

E) None of these

**Explanation (Show/Hide)**

**Q.8. A tap can fill a tank in 6 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) 3 hrs 15 min

B) 3 hrs 45 min

C) 4 hrs

D) 4 hrs 15 min

E) None of these

B) 3 hrs 45 min

C) 4 hrs

D) 4 hrs 15 min

E) None of these

**Explanation (Show/Hide)**

**Q.9. Two pipes A and B can fill a tank in 20 and 30 minutes respectively. If both the pipes are used together, then how long will it take to fill the tank?**

A) 12 min

B) 15 min

C) 25 min

D) 50 min

E) None of these

B) 15 min

C) 25 min

D) 50 min

E) None of these

**Explanation (Show/Hide)**

**Q.10. A tank is filled in 5 hours by three pipes A, B and C. The pipe C is twice as fast as B and B is twice as fast as A. How much time will pipe A alone take to fill the tank?**

A) 20 hours

B) 25 hours

C) 35 hours

D) Cannot be determined

E) None of these

B) 25 hours

C) 35 hours

D) Cannot be determined

E) None of these

**Explanation (Show/Hide)**

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