SOLUTION: how long will it take 3 pumps to empty a pool working together? pump one can empty in 5days, pump two 7 days and pump three 4 days.

SOLUTION: how long will it take 3 pumps to empty a pool working together? pump one can empty in 5days, pump two 7 days and pump three 4 days.

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Question 782299: how long will it take 3 pumps to empty a pool working together?
pump one can empty in 5days, pump two 7 days and pump three 4 days.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Use a calculator to get 140/83 = 1.68674 (roughly)

It will take approximately days if the 3 pumps work together.
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