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Pipe A can fill a tank in 20 minutes and...

Pipe A can fill a tank in 20 minutes and Pipe B can empty the same tank in 30 minutes. Find the time taken to fill the empty tank if both pipes are opened together

A

40 mins

B

50 mins

C

70 mins

D

60 mins

Text Solution

Verified by Experts

The correct Answer is:
D
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