SOLUTION: Two hoses together fill a pool in 2h. If only hose A is used, the pool fills in 3h. How long would it take to fill the pool if only B hose were used?

Question 600849: Two hoses together fill a pool in 2h. If only hose A is used, the pool fills in 3h. How long would it take to fill the pool if only B hose were used?
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
Two hoses together fill a pool in 2h. If only hose A is used, the pool fills in 3h. How long would it take to fill the pool if only B hose were used?
.
Let x = time (hours) it takes hose B alone
then
2(1/x + 1/3) = 1
multiplying both sides by 3x:
2(3 + x) = 3x
6 + 2x = 3x
6 hours = x

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