SOLUTION: Pump A can fill a pool in 11 hours and pump B can empty the same pool in 4 hours.While the pool is full, both pumps are accidentally turned on at the same time. How long does it ta

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Pump A can fill a pool in 11 hours and pump B can empty the same pool in 4 hours.While the pool is full, both pumps are accidentally turned on at the same time. How long does it ta      Log On


   

Question 850089: Pump A can fill a pool in 11 hours and pump B can empty the same pool in 4 hours.While the pool is full, both pumps are accidentally turned on at the same time. How long does it take to empty the pool?
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
Very , very briefly: %281%2F%281%2F4-1%2F11%29%29%2Ahours