SOLUTION: it takes 30 hours to fill a swimming pool using 4 pumps, how many hours would it take if used 5 pumps?

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Question 1005714: it takes 30 hours to fill a swimming pool using 4 pumps, how many hours would it take if used 5 pumps?
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
We have to calculate pump-hours for this one...
4 pumps * 30 hours = 5 pumps * x hours
120 = 5x
x = 24 hours