SOLUTION: Two water pipes are filling a shark tank. One pipe fills the tank three times as fast as the other. With both pipes working together, the tank fills in 84 minutes. How long would i

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Two water pipes are filling a shark tank. One pipe fills the tank three times as fast as the other. With both pipes working together, the tank fills in 84 minutes. How long would i      Log On


   

Question 1171217: Two water pipes are filling a shark tank. One pipe fills the tank three times as fast as the other. With both pipes working together, the tank fills in 84 minutes. How long would it take for each pipe to fill the tank working alone?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Other pipe, rate 1%2Fx
One pipe, rate 3%2Fx

1%2Fx%2B3%2Fx=1%2F84
and the rest is simple to do...