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Two pipes could fill an empty tank in 20...

Two pipes could fill an empty tank in 20 hrs. 28 hours respectively while a third one can drain the filled tank in 35 hours. If the outlet pipe was closed 3 hours before the tank got filled and second pipe which can filled cistern in 28 hrs, also closed 4 hrs. before the cistern is filled, how many hours since the beginning did it take to fill the tank?

A

18hr 30 min

B

16hr 45 min

C

17hr 15 min

D

20hr 10 min

Text Solution

Verified by Experts

The correct Answer is:
A
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GAGAN PRATAP -PIPE & CISTERN-MULTIPLE CHOICE QUESTION
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  2. Two fill pipes A and B can fill cistern in 56 and 63 min respectively....

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  3. Two pipes could fill an empty tank in 20 hrs. 28 hours respectively wh...

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  4. Pipes A and B can fill a tank in one hour and two hours respectively w...

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  5. Pipes A, B and C can fill a tank in 30h, 40 h and 60 h respectively. P...

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  6. Pipes A and B can fill a tank in 16 hours and 24 hours, respectively, ...

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  7. An empty cistern has three pipes A, B and C. A and B can fill it in 24...

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  8. Two pipes can fill a cistern separately in 55 and 66 minutes respectiv...

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  9. Two pumps which can fill a tank in 16 hours and 20 hours while working...

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  10. Two taps A and B can fill a tank in 30 min and 36 min respectively. Bo...

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  11. Two pipes A and B can fill an empty cistern in 32 and 48 hours, respec...

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  12. Two pipes X and Y can fill an empty tank in 36 and 45 hours respective...

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  13. Two pipes A and B can fill a cistern in 24hr and 27hr respectively. Bo...

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  14. Pipes A and B can fill a tank in 10 hours and 40 hours, respectively. ...

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  15. Pipe A could fill an empty cistern in 18 hours while Pipe B can drain ...

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  16. Three pipes A, B and C are attached to a tank. A and B can fill ...

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  17. Two pipes A and B can fill an empty cistern in 15 and 25 hours, respec...

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  18. One fill pipe A takes 21(1)/(3) minutes more to fill the cistern than ...

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  19. A swimming pool is fitted with 3 pipes, the 1st two pipes working simu...

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  20. An inlet pipe can fill a tank in 5 hours and an outlet pipe can empty ...

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