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Two pipes A and B together can fill a ci...

Two pipes A and B together can fill a cistern in 4 hours. Had they been opened separately, then B would have taken 6 hours more than A to fill the cistern. How much time will be taken by A alone to fill the cistern? `1\ h r s` b. `2\ h r s` c. `6\ h r s` d. `8\ h r s`

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RS AGGARWAL-PIPES AND CISTERNS-All Questions
  1. Two taps A and B can fill a tank in 5 hours and 20 hours respective...

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  2. Three pipes A, B and C can fill a tank from empty to full in 30 min...

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  3. Two pipes A and B together can fill a cistern in 4 hours. Had they ...

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  4. One pipe can fill a tank three times as fast as another pipe. If toget...

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  5. A tank is filled in 5 hours by three pipes A, B and C. The pipe C i...

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  6. A swimming pool is filled by three pipes with uniform flow. The firs...

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  7. 12 buckets of water fill a tank when the capacity of each bucket is...

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  8. Bucket P has thrice the capacity as bucket Q. It takes 60 turns for...

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  9. Two pipes AS and B can fill a tank in 15 minutes and 20 minutes res...

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  10. A large tanker can he filled by two pipes A and B in 60 minutes and...

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  11. Two pipes A and B can fill a tank in 15 hours and 20 hours respectiv...

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  12. Two pipes A and B can fill a cistern in 12 minutes and 13 ininu4s r...

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  13. Two pipes A and B can fill a tank in 20 and 30 hours respectively. ...

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  14. Four pipes can fill a reservoir in 15, 20, 30 and 60 hours respecti...

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  15. Two pipes can fill a tank with tank with water in 15 and 12 hours r...

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  16. Tap a fill a tank in 4 hours whereas tap B empties the full tank in...

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  17. Two pipes A and B can fill a tank in 6 hours and 4 hours respective...

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  18. Three taps A, B and C can fill tank in 12,15 and 20 hours respectively...

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  19. Pipe A can fill a tank in 10 hours, Pipe B can fill the same tank i...

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  20. A booster pump can be used for filling as well as for emptying a ta...

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