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Pipes P and Q can fill a tank in 18 and ...

Pipes P and Q can fill a tank in 18 and 27 minutes, respectively, whereas pipe R can empty thefull tank in 54 minutes. P and Q were opened together for 6 minutes and then closed and R was opened. The tank was emptied by R alone in:

A

30

B

40

C

35

D

45

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. A and B are two pipes which can fill a tank individually in 20 minute...

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  3. Pipes P and Q can fill a tank in 18 and 27 minutes, respectively, wher...

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  4. Pipes A and B are filling pipes while pipe C is an emptying pipe A and...

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  5. Pipes A, B and C together can fill a cistern in 12 hours. All the thre...

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  6. Pipes A, B and C can fill a tank in 10, 15 and 30 hours, respectively....

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  7. Pipe A and B can fill a tank in 16 hours and 24 hours respectively whe...

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  8. Two pipe A and B can fill a tank with water in 42min and 35min respect...

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  9. Two taps A and B can fill a tank in 48 min. and 36 min. If both taps a...

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  10. Three pipes, A, B, C can fill an empty cistern in 2, 3 and 6 hours res...

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  11. Pipe A can fill a tank in 16 minutes and pipe B emptics it in 24 minut...

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  12. An empty cistern has three pipes A, B and C. A and B can fill it in 45...

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  13. Two fill pipes A and B can fill cistern in 56 and 63 min respectively....

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

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

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

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

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

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

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

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