SOLUTION: An inlet pipe on a swimming pool can be used to fill a pool in 36 hours. The drain pipe can be used to empty the pool in 40 hours. If the pool is 2/3 filled using the inlet pipe an

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Question 1153779: An inlet pipe on a swimming pool can be used to fill a pool in 36 hours. The drain pipe can be used to empty the pool in 40 hours. If the pool is 2/3 filled using the inlet pipe and then the drain pipe is accidentally opened, how long from that time will it take to fill the pool?
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
Trying to fill1%2F3 of the pool


%281%2F36-1%2F40%29%2Ax=1%2F3-----------solve for x.