Two pipes A and B can fill an empty tank in 60 minutes and 78 minutes – McqOptions

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1.	Two pipes A and B can fill an empty tank in 60 minutes and 78 minutes respectively. Both pipes are opened together, but pipe B is closed after 26 minutes. In how many minutes the tank will be filled?
A.	40
B.	48
C.	52
D.	45
Answer» B. 48

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