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A tap can fill a tank in 6 hours. After ...

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? `3\ h r s .15\ m in` b. `3\ h r s\ 45\ m in` c. `4\ h r s` d. `4\ h r s\ 15\ m in`

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RS AGGARWAL-PIPES AND CISTERNS-All Questions
  1. A pipe can fill a tank in 3 hours. There are two outlet pipes from ...

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  2. In what time would a cistern be filled by three pipes whose diamete...

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  3. A tap can fill a tank in 6 hours. After half the tank is filled, th...

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  4. A cistern has two pipes. One can till it with water in 8 hours and ...

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  5. A vessel has three pipes connected to it two to supply liquid and o...

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  6. Two pipes A and B can separately fill a cistern in 60 minutes and 7...

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  7. Eight pipes are fitted to a water tank. Some of these are water pip...

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  8. A pump can fill a tank in 2 hours. Due to a leak in the tank it takes ...

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  9. Two taps A and B can fill a tank in 5 hours and 20 hours respective...

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

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

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

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

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

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  15. 12 buckets of water fill a tank when the capacity of each bucket is...

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

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

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

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

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

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