Two pipes A and B together can fill a cistern in 4 hours. Had they been opened separately, then B would have taken 6 hours more than A to fill the cistern. How much time will be taken by A to fill the cistern separately?

Question

Accepted Answer

Let the cistern be filled by pipe A alone in x hours. Then, pipe B will fill it in (x + 6) hours. ∴ 1 +

⟹	x + 6 + x	=	1
	x(x + 6)		4

Two pipes A and B together can fill a cistern in 4 hours. Had they been opened separately, then B would have taken 6 hours more than A to fill the cistern. How much time will be taken by A to fill the cistern separately?

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