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

Algebra ->  Rate-of-work-word-problems -> 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      Log On


   



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) About Me  (Show Source):
You can put this solution on YOUR website!
1/5-1/p=1/8
p = 40/3