SOLUTION: one pump fills a tank 4 times as fast as another pump. If the pumps work together they will fill the tank in 20 minutes. How long does it take for each pump to fill the tank?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: one pump fills a tank 4 times as fast as another pump. If the pumps work together they will fill the tank in 20 minutes. How long does it take for each pump to fill the tank?      Log On


   

Question 807108: one pump fills a tank 4 times as fast as another pump. If the pumps work together they will fill the tank in 20 minutes. How long does it take for each pump to fill the tank?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
20/x+20/4x=1
80/4x+20/4x=1
100/4x=1
25/x=1
pump a=x=25
pump b=4x=100