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Two pipes A and B can fill a tank in 36 ...

Two pipes A and B can fill a tank in 36 minutes and 45 minutes respectively. Another pipe C can empty the tank in 30 minutes. First A and B are opened. After 7 minutes, C is also opened. The tank is filled up in

A

`1//60`

B

`1//30`

C

`7//20`

D

`13//20`

Text Solution

Verified by Experts

The correct Answer is:
A
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DISHA PUBLICATION-TIME AND WORK-Practice Exercise (Foundation Level)
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