SOLUTION: one inlet pipe can fill a pool by itself in 3 hours. Another pipe can fill the pool in 4 hours alone. How long will it take to fill the pool if both pipes are open

Algebra ->  Rate-of-work-word-problems -> SOLUTION: one inlet pipe can fill a pool by itself in 3 hours. Another pipe can fill the pool in 4 hours alone. How long will it take to fill the pool if both pipes are open      Log On


   



Question 866486: one inlet pipe can fill a pool by itself in 3 hours. Another pipe can fill the pool in 4 hours alone. How long will it take to fill the pool if both pipes are open
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
1/3+1/4=1/x
4/12+3/12=1/x
7/12=1/x
x=12/7