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Two pipes U and V can fill a cistern in ...

Two pipes U and V can fill a cistern in 12 hours and 20 hours respectively. Pipe W can empty the tank in 8 hours. If all the three pipes are opened, then in how many hours the cistern will be full?

A

60

B

120

C

150

D

100

Text Solution

Verified by Experts

The correct Answer is:
A, B
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