Three pipes A, B and C can fill a tank in 5, 10 and 15 hours respectiv – McqOptions

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1.	Three pipes A, B and C can fill a tank in 5, 10 and 15 hours respectively. If A is continuously open and B and C are open alternately for one hour respectively, the tank will be filled in:
A.	4.5 hours
B.	3 hours
C.	4 hours
D.	3.5 hours
Answer» E.

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