SOLUTION: if a slow hose pipe takes 45 minutes to fill a bucket and a fast hose pipe takes 30 minutes . how long would both pipes take together?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: if a slow hose pipe takes 45 minutes to fill a bucket and a fast hose pipe takes 30 minutes . how long would both pipes take together?       Log On


   

Question 276164: if a slow hose pipe takes 45 minutes to fill a bucket and a fast hose pipe takes 30 minutes . how long would both pipes take together?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
1/45+1/30=1/X
(30+45)/45*30=1/X
75/1,350=1/X
75X=1,350
X=1,350/75
X=18 MINUTES WORKING TOGETHER.