SOLUTION: drain A will empty a tank in 5 hours. Drain B will empty the tank in 6 hours. How long will it take to empty a tank using both drains?
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Question 807876: drain A will empty a tank in 5 hours. Drain B will empty the tank in 6 hours. How long will it take to empty a tank using both drains? Answer by richwmiller(17219) (Show Source):
