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Two pipes A and B can fill a cistern in ...

Two pipes A and B can fill a cistern in 4 minutes and 6 minutes respectively. If these pipes are turned on alternately for 1 minute each how long will it take for the cistern to fill?

A

4 min 40 sec

B

3 min 20 sec

C

4 min 50 sec

D

3 min 30 sec

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The correct Answer is:
A
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MAHENDRA-PIPE & CISTERN-EXERCISE
  1. Two pipes A and B can fill a cistern in 24 minutes and 30 minutes, res...

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  2. A cistern has a leak which would empty in 8 hours. A tap is turned on ...

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  3. If two pipes function simultaneously, a tank is filled in 12 hours. On...

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  4. One fill pipe A is 3 times faster than second fill pipe B and takes 32...

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  5. Two pipes A and B can fill a cistern in 4 minutes and 6 minutes respec...

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  6. There are two taps to fill a tank while a third to empty it. When the ...

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  7. A cistern is provided by two taps A and B. A can fill it in 20 minutes...

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  8. Two pipes A and B can separately fill a tank in 6 hours and 8 hours , ...

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  9. A cistern has two taps which fill it in 12 minutes and 15 mintues resp...

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  10. Two taps can separately fill a cistern in 10 minutes and 15 minutes re...

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  11. A water tank is 2/5 th full. Pipe A can fill the tank in 10 minutes an...

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  12. Tap 'A' can fill a water tank in 25 minutes , tap 'B' can fill the sam...

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  13. A pipe can fill a tank in 5 hours and a second pipe can empty it in 4 ...

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  14. A pump can fill a tank with water in 2 hours. Because of a leak in the...

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  15. Two pipe A and B can separately fill a cistern in 60 minutes and 75 mi...

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  16. A tap can fill a cistern in 6 hours. After half of the tank is filled,...

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  17. A pump can fill a tank with water in 2 hours. Because of a leak in the...

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  18. Two pipes A and B can fill a tank in 6 hours and 4 hours respectively ...

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  19. Three taps A, B and C can fill a tank in 12, 15 and 20 hours respectiv...

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  20. Two pipes A and B can fill a water tank in 20 and 24 minutes respectiv...

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