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There are two taps to fill a tank while ...

There are two taps to fill a tank while a third to empty it. When the third tap is closed, they can fill the tank in 10 minutes and 12 minutes respectively . If all the three taps be opened, the tank is filled in 15 minutes . If the first two taps are closed . In what time can the third tap empty the tank when it is full ?

A

7 min.

B

9 min. and 32 sec

C

8 min. and 34 sec

D

6 min.

Text Solution

Verified by Experts

The correct Answer is:
C
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