SOLUTION: A pipe can fill a water tank in 24 hours. The drain can drain the tank in 18 hours. If the pipe is turned on and the drain is left open, how long will it take to fill the tank?
Algebra ->
Rate-of-work-word-problems
-> SOLUTION: A pipe can fill a water tank in 24 hours. The drain can drain the tank in 18 hours. If the pipe is turned on and the drain is left open, how long will it take to fill the tank?
Log On
Question 440658: A pipe can fill a water tank in 24 hours. The drain can drain the tank in 18 hours. If the pipe is turned on and the drain is left open, how long will it take to fill the tank? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! x/24-x/18=1
x/4-x/3=6
3x-4x=72
-x=72
x=-72
the tank will never fill
the drain is faster than the pipe.
if the times were reversed it would take 72 hours
