When operated separately, pipe A takes 5 hours less than pipe B to fil – McqOptions

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1.	When operated separately, pipe A takes 5 hours less than pipe B to fill a cistern, and when operated together, the cistern gets filled in 6 hours. In how much time (in hours) will pipe A fill the cistern, if operated separately?
A.	15
B.	10
C.	9
D.	18
Answer» C. 9

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