Two pipes A and B can fill a tank in 60 minutes and 75 minutes respect – McqOptions

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1.	Two pipes A and B can fill a tank in 60 minutes and 75 minutes respectively. There is also an outlet C. If A, B and C are opened together, the tank is full in 50 minutes. How much time will be taken by C to empty the full tank?
A.	100 minutes
B.	110 minutes
C.	120 minutes
D.	125 minutes
Answer» B. 110 minutes

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