SOLUTION: One hose can fill a small swimming pool in 90 minutes. A larger hose can fill the pool in 30 minutes. How long will it take the two hoses to fill the pool working together?
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Question 1135940: One hose can fill a small swimming pool in 90 minutes. A larger hose can fill the pool in 30 minutes. How long will it take the two hoses to fill the pool working together? Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! in x minutes, the first hose will fill x/90 of the pool and the larger will fill x/30
they will both fill the pool when x/90 + x/30=1
multiply by LCD 90 and x+3x=90
4x=90
x=22.25 minutes ANSWER
check
22.5/90 + 22.5/30=1, and the larger hose will do 3/4 of the filling.
