Pipes and Cistern
Pipes and Cistern - Important Points
| 6. | Two pipes A and B can fill a tank in 12 minutes and 15 minutes respectively. If both the pipes are opened simultaneously, and the pipe A is closed after 3 minutes, then how much more time will it take to fill the tank by pipe B ? |
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A. 7 min 15 sec
B. 7 min 45 sec
C. 8 min 15 sec
D. 8 min 45 sec
View Answer Discuss Work SpaceAnswer: option d
Explanation:
| 7. | Two pipes A and B can fill a tank in 15 hours and 20 hours respectively while a third pipe C can empty the full tank in 25 hours. All the three pipes are opened in the beginning but after 10 hours, pipe C is closed. In how much time, the tank will be filled ? |
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A. 12 hrs
B. 13 hrs
C. 14 hrs
D. 15 hrs
View Answer Discuss Work SpaceAnswer: option a
Explanation:
| 8. | Two pipes A and B can fill a tank in 15 minutes and 20 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. The total time required to fill the tankis: |
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A. 10 min 40 sec
B. 12 min 40 sec
C. 14 min 40 sec
D. 16 min 40 sec
View Answer Discuss Work SpaceAnswer: option d
Explanation:
| 9. | Two pipes A and B can fill a tank in 36 min and 45 min respectively. A pipe C can empty the full tank in 30 min. First A and B are opened and after 7 minutes, pipe C is also opened. In how much time, the tank will be full ? |
|---|
A. 46 min
B. 48 min
C. 50 min
D. 52 min
View Answer Discuss Work SpaceAnswer: option a
Explanation:
| 10. | Two pipes A and B can fill a tank in 6 hours and 4 hours respectively . If they are opened on alternate hours and if pipe A is opened first in how many hours the tank will be filled ? |
|---|
A. 4
B. 4.5
C. 5
D. 6
View Answer Discuss Work SpaceAnswer: option c
Explanation:
Pipes and Cistern Questions and Answers FAQ
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