Mathematics, 08.07.2021 06:00 jagger68

A pipe can fill a reservoir in 20 hr. A drainage pipe can drain the reservoir in 30 hr. How long would it take to fill the reservoir if the drainage pipe were left open by mistake? (Hint: The rate at which water drains should be negative.) Write your answer as an
integer, simplified fraction, or mixed number.
It will take
hr to fill the reservoir.

Answers: 2

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A pipe can fill a reservoir in 20 hr. A drainage pipe can drain the reservoir in 30 hr. How long wou...