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Exercise 11.61. A water tank has an inlet and an outlet. The inlet is capable of filling the tank in 20 minutes andthe outlet is capable of emptying the tank in 40 minutes. When the inlet was opened to fill theempty tank, the person did not notice that the outlet was open. So both the inlet and the outletwere open. In how much time will the tank be just filled?2. Jaya and Seema can together do a piece of work in 10 hours. Seema alone canHow long will Jaya take to do it alone?Three numng c |
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