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A pipe can fill a tank in 4 hours and a ...

A pipe can fill a tank in 4 hours and a leak at the bottom can empty that full tank in 6 hours. If after the tank is 1/3 full, the leak is completely closed, how much time from beginning will it take for tank to get filled completely?
एक पाइप किसी टंकी को 4 घंटे में भर सकता है तथा तल पर मौजूद एक छिद्र इस भरी हुई टंकी को 6 घंटे में खाली कर सकता है | यदि टंकी के 1/3 भाग भर जाने के बाद इस छेद को पूरी तरह से बंद कर दिया जाता है, तो टंकी को पूर्णतः भरने में शुरू से कुल कितना समय लगेगा ?

A

12 hours

B

4 hours

C

9 hours

D

`20/3` hours

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PINNACLE-PIPE & CISTERN-EXERCISE
  1. A pipe can fill a tank in 30 minutes. Due to two leakages A and B, the...

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  2. Two pipes can fill a cistern in 72 and 90 minutes respectively. If bot...

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  3. A pipe can fill a tank in 4 hours and a leak at the bottom can empty t...

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  4. A pipe can fill a tank in 32 minutes. Due to a leak the tank is filled...

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  5. Two pipes A and B fill tank in 20 min and 30 min. respectively. If A i...

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  6. Three pipes A, B and C can fill a cistern in 15,24 and 36 minutes resp...

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  7. Pipe A can fill a tank in 6 hours. Pipe B can fill the same tank in 8 ...

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  8. Pipe P can fill a tank alone in 7 hours. Pipe Q can fill the same tank...

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  9. An inlet pipe A originating from a river can fill a reservoir in 30 da...

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  10. Pipe A can fill an empty tank completely in 11 hours. Pipe B can empty...

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  11. Pipe D1 can fill an empty tank in 80 minutes and Pipe D2 can empty the...

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  12. Pipe V1 can fill an empty tank in 8 hours. Pipe V2 can fill the same t...

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  13. Pipe A can fill a tank in 36 minutes and pipe B is able to empty this ...

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  14. Two pipes P and Q can fill an empty tank in 20 minutes and 10 minutes ...

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  15. Pipe A can fill a tank in 10 hours. Pipe B can fill the same tank in 1...

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  16. A pipe can fill a tank in 18 hours. In how much time (in hours) will a...

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  17. A pipe can fill a tank in 56 hours, but due to leakage in its base, it...

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  18. Pipes A and B can empty a fully filled tank in 8 and 12 hours respecti...

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  19. An inlet pipe can fill a tank in 2 hours and an outlet pipe can empty ...

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  20. Pipes A and B can empty a filled tank in 20 hours and 15 hours respect...

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