SOLUTION: Pipe A can fill a tank alone in 5 hours and Pipe B can fill the tank alone in 4 hours. A drain pipe (Pipe C) can empty the tank in 20 hours. With all three Pipes open, how long wi
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Question 993128: Pipe A can fill a tank alone in 5 hours and Pipe B can fill the tank alone in 4 hours. A drain pipe (Pipe C) can empty the tank in 20 hours. With all three Pipes open, how long will it take to fill the tank
Answer by ikleyn(52800) (Show Source): You can put this solution on YOUR website!
.
+ - = = = = .
Hence, it will take = hours.
It is a joint work problem.
For more solved problems of this type see the lesson Using fractions to solve word problems on joint work in this site.
It is free of charge and without registration.
Good luck!
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