SOLUTION: It takes three hours for an inlet pipe to fill a tank and six hours for an outlet pipe to drain it. A forgetful maintenance worker empties a tank and then refills it. However, he
Algebra ->
Customizable Word Problem Solvers
-> Evaluation
-> SOLUTION: It takes three hours for an inlet pipe to fill a tank and six hours for an outlet pipe to drain it. A forgetful maintenance worker empties a tank and then refills it. However, he
Log On
Question 1166338: It takes three hours for an inlet pipe to fill a tank and six hours for an outlet pipe to drain it. A forgetful maintenance worker empties a tank and then refills it. However, he forgot to close the outlet pipe when the refilling starts. How many hours will it take the tank to be half filled?
The inflow rate is of the tank volume per hour.
The outflow rate is of the tank volume per hour.
The net inflow rate is the difference - = = of the tank volume per hour.
Hence, the tank will be filled in 6 hours, under given conditions. ANSWER
