SOLUTION: An inlet pipe can fill a tank in 8 hours when the drainpipe is open and in 5 hours when the drainpipe is closed. How long will it take to empty a full tank when the inlet pipe is c

SOLUTION: An inlet pipe can fill a tank in 8 hours when the drainpipe is open and in 5 hours when the drainpipe is closed. How long will it take to empty a full tank when the inlet pipe is c

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Question 853427: An inlet pipe can fill a tank in 8 hours when the drainpipe is open and in 5 hours when the drainpipe is closed. How long will it take to empty a full tank when the inlet pipe is closed?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
1/5-1/p=1/8
p = 40/3

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