SOLUTION: One pipe can fill a swimming pool in 8 hours. Another pipe takes 12 hours. How long will it take to fill the pool if both pipes are used simultaneously?

Question 938806: One pipe can fill a swimming pool in 8 hours. Another pipe takes 12 hours. How long will it take to fill the pool if both pipes are used simultaneously?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Per hour KEY
|Multiplying thru by 24x so as all denominators = 1
3x + 2x = 24
5x = 24
x = 24/5 = 5.8 hr
and... checking

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