SOLUTION: A swimming pool can be filled in 15 hours if water enters through a pipe alone. 23 hours if water enters through a hose alone. How long will it take to fill the pool if water is en
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Question 666302: A swimming pool can be filled in 15 hours if water enters through a pipe alone. 23 hours if water enters through a hose alone. How long will it take to fill the pool if water is entering through both the pipe and the hose?
Answer by kevwill(135) (Show Source): You can put this solution on YOUR website!
We start by turning the times into rates.
A pipe can fill the swimming pool in 15 hours, so the rate for the pipe is of a swimming pool per hour.
A hose can fill the swimming pool in 23 hours, so the rate for the hose is of a swimming pool per hour.
Their combined rate, r, is of a swimming pool per hour.
of a swimming pool per hour
So both the pipe and the hose together will take hours to fill the pool, or 9 hours 4 minutes and 44.21 seconds.
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