Two pipes A and B fill a tank in 10 hours and 15 hours respectively. I – McqOptions

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1.	Two pipes A and B fill a tank in 10 hours and 15 hours respectively. If both of them work together, in what time will the tank be filled?
A.	6 hours
B.	12.5 hours
C.	6.5 hours
D.	5 hours
Answer» B. 12.5 hours

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