Pipes and Cistern
Pipes and Cistern - Important Points
| 11. | Two pipes A and B can fill a tank in 9 hours and 3 hours respectively. If they are opened on alternate hours and if pipe A is opened first, how many hours, the tank will be filled? |
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A. 4 hr
B. 5 hr
C. 5.5 hr
D. 6 hr
View Answer Discuss Work SpaceAnswer: option b
Explanation:
| 12. | Two pipes A and B can separately fill a cistern in 60 minutes and 75 minutes respectively. There is a third pipe in the bottom of the cistern to empty it. If all the three pipes are opened simultaneously then the cistern is filled in 50 minutes. The third pipe alone can empty the cistern in: |
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A. 90 min
B. 100 min
C. 110 min
D. 120 min
View Answer Discuss Work SpaceAnswer: option b
Explanation:
| 13. | Two pipes A and B together can fill a cistern in 4 hours. Had they been opened separately, the pipe B would have taker 6 hours more than pipe A to fill the cistern. pipe A can fill the cistern separately in: |
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A. 1 hrs
B. 2 hrs
C. 6 hrs
D. 4 hrs
View Answer Discuss Work SpaceAnswer: option c
Explanation:
Coming soon. Refer Important Points for the method to solve such questions.
| 14. | Two pipes can fill a cistern in 14 hours and 16 hours respectively. The pipes are opened simultaneously and it is found that due to leakage in the bottom it took 32 minutes more to fill the cistern. In what time will the leakage empty the full cistern ? |
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A. 106 hours
B. 108 hours
C. 110 hours
D. 112 hours
View Answer Discuss Work SpaceAnswer: option d
Explanation:
| 15. | Two pipes can fill a tank in 20 minutes and 24 minutes respectively and a waste pipe can empty 3 litres per minute. All he three pipes working together can fill the tank in 15 minutes. The capacity of the tank is: |
|---|
A. 80 litres
B. 100 litres
C. 120 litres
D. 180 litres
View Answer Discuss Work SpaceAnswer: option c
Explanation:
Pipes and Cistern Questions and Answers FAQ
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