Asked by Tim

One pump fills a tank two times as fast as another pump. If the pumps work together they fill the tank in 18 minutes. How long does it take each pump working alone to fill the tank?

Answers

Answered by Steve
If the fast pump fills the tank in x minutes, we have

1/x + 1/2x = 1/18
x = 27
Answered by Anonymous
no solution
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