SOLUTION: a 400 gallon swimming pool is being drained. After three hours, 250 gallons have been drained. If the rate of drainage continues, how long will it take to drain the pool?

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Question 974448: a 400 gallon swimming pool is being drained. After three hours, 250 gallons have been drained. If the rate of drainage continues, how long will it take to drain the pool?
Answer by josgarithmetic(39623) About Me  (Show Source):
You can put this solution on YOUR website!
Empty rate is %28250%2F3%29%28gallons%2Fhour%29.

Amount yet to drain or make empty, 400-250, gallons, or 150 gallons.

Uniform Rates, R%2AT=V relating rate, time, volume.
%28250%2F3%29t=150

t=150%283%2F250%29

t=45%2F25=9%2F5=highlight%281%264%2F5%29
1 hour 48 minutes