SOLUTION: Two pipes are used to fill a pool. One pipe can fill the pool in 3 hours while the other pipe can fill the pool in 6 hours. The drain, which can empty the pool in 8 hours, was acci
Question 1139835: Two pipes are used to fill a pool. One pipe can fill the pool in 3 hours while the other pipe can fill the pool in 6 hours. The drain, which can empty the pool in 8 hours, was accidentally left open. How long will it take the pool tp fill completely? Answer by ikleyn(52778) (Show Source):
First pipe fills of the pool volume per hour.
Second pipe fills of the pool volume per hour.
The drain removes of the pool volume per hour.
The net inflow rate is = = = of the pool volume per hour.
It means that the pool will be filled in hours = hours = 2 hours and 40 minutes. ANSWER
