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Two pipes A and B can fill a tank in 60 ...

Two pipes A and B can fill a tank in 60 min. and 75 min. respectively. There is also awaste pipe in the tank (cistern). When all the three are opened, the cistern get filled in 50 minutes. How long will the waste pipe take to empty the full cistern.

A

110 minutes

B

100 minutes

C

120 minutes

D

90 minutes

Text Solution

Verified by Experts

The correct Answer is:
B
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