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  • Brainly User
2014-11-03T20:32:03+05:30
Let the volume of tank be 1 unit. We have, rate of filling the tank without a leak = 1 unit per 2 hours. And the rate of filling in the presence of a leak = 1 unit per 2 hours 20 minutes = 1 unit per 7/3 hours. Now, the rate of emptying the tank = 1/2 - 1/(7/3) =1 unit per 14 hours. Then, time taken to empty the tank = 14 hours
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