SOLUTION: One pipe can fill a pool in 8 hours. The drain can empty it in 14 hours. With the pipe on and the drain open, how long will it take the pool to be filled?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: One pipe can fill a pool in 8 hours. The drain can empty it in 14 hours. With the pipe on and the drain open, how long will it take the pool to be filled?       Log On


   



Question 252653: One pipe can fill a pool in 8 hours. The drain can empty it in 14 hours. With the pipe on and the drain open, how long will it take the pool to be filled?
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
1/8 pool filled in 1 hour. 1/14 pool drained in 1 hr.
1/8 - 1/14
=7/56 - 4/56 = 3/56 pool filled in 1 hr.
56/3 hrs to fill the entire pool.
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Ed