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There are three pipes connected with a t...

There are three pipes connected with a tank. The first pipe can fill 1/2 part of the tank in 1 h, second pipe can fill 1/3 part of the tank in 1 h. Third pipe is connected to empty the tank. After opening all the three pipes, 7/12 part of the tank can be filled in 1 h, then how long will third pipe take to empty the full tank?

A

3 hours

B

4 hours

C

5 hours

D

6 hours

Text Solution

Verified by Experts

The correct Answer is:
B
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