SOLUTION: a water-tank can be filled by any combination of three different taps. with the smallest tap the tank can be filled in 20 minutes.with the middle tap the tank can be filled in 12 m

Algebra ->  Rate-of-work-word-problems -> SOLUTION: a water-tank can be filled by any combination of three different taps. with the smallest tap the tank can be filled in 20 minutes.with the middle tap the tank can be filled in 12 m      Log On


   

Question 565498: a water-tank can be filled by any combination of three different taps. with the smallest tap the tank can be filled in 20 minutes.with the middle tap the tank can be filled in 12 minutes.with the largest tap the tank can be filled in 5 minutes.how long does it take with all three taps running?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
(x / 20) + (x / 12) + (x / 5) = 1