SOLUTION: PumP A, working alone, can fill a tank in 3 hours, and pump B can fill tthe same tank in 2 hours. If the tank is empty to start and pump a is switched on for 1 hour, after which p
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-> SOLUTION: PumP A, working alone, can fill a tank in 3 hours, and pump B can fill tthe same tank in 2 hours. If the tank is empty to start and pump a is switched on for 1 hour, after which p
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Question 732913: PumP A, working alone, can fill a tank in 3 hours, and pump B can fill tthe same tank in 2 hours. If the tank is empty to start and pump a is switched on for 1 hour, after which pump b is also switched on and the two work together, how many minutes will pump b have been working by the time the pool is filled? Answer by lynnlo(4176) (Show Source):
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