SOLUTION: If it takes a pipe A 12 hrs to fill a swimming pool. it takes another pipe B 8 hrs to fill the same swimming pool. How long would it take the two pipes together to fill the swimmi

Algebra ->  Rate-of-work-word-problems -> SOLUTION: If it takes a pipe A 12 hrs to fill a swimming pool. it takes another pipe B 8 hrs to fill the same swimming pool. How long would it take the two pipes together to fill the swimmi      Log On


   



Question 811825: If it takes a pipe A 12 hrs to fill a swimming pool. it takes another pipe B 8 hrs to fill the same swimming pool. How long would it take the two pipes together to fill the swimming pool?. Thanks
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
x/12+x/8=1
6x+9x)/72=1
15x/72=1
5/24x=1
x=24/5
x=4.8