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A tap can fill an empty tank in 48 minu...

A tap can fill an empty tank in 48 minutes whereas another tap can empty the full tank in 2 hours. If both the taps are opened at `11:40` a.m., when will the empty tank be filled ?

A

`12:40` p.m.

B

`1:30` p.m.

C

`1:00` p.m.

D

`1:20` p.m.

Text Solution

Verified by Experts

The correct Answer is:
C
Consider, the filling of tank as a positive work and emptying the tank as negative work.
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PEARSON IIT JEE FOUNDATION-TIME AND WORK, PIPES AND CISTERNS-CONCEPT APPLICATION (LEVEL-1)
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