Water tank has three inlets, which independently can fill the tank in – InterviewSolution

1.	Water tank has three inlets, which independently can fill the tank in 20, 40, 30 minutes, respectively . How much time does it take to fill the tank when all work together.
Answer» Water tank has three inlets, which independently can fill the tank in 20, 40, 30 minutes, respectively . How much time does it take to fill the tank when all work together.

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