SOLUTION: Pump A can fill a tank in 10 hours. Pump B can empty the same tank in 15 hours. If both pumps are in operation, how long will it take to fill the tank?
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Question 903951: Pump A can fill a tank in 10 hours. Pump B can empty the same tank in 15 hours. If both pumps are in operation, how long will it take to fill the tank?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
3x + 2x = 30
5x = 30
x = 6hr to fill the tank
And...
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