# TIaO - Part 3

A tank has two inlets and an outlet (a pipe that removes water from the tank). The first inlet can fill a tank in $$36$$ hours, while the second one can fill it in $$27$$ hours. The outlet can empty the tank in $$18$$ hours. How many hours will it take to fill up the tank?

Note:

• The inlets and outlets are positioned so that the tank can be filled evenly.

This problem is part of the set Tank Inlets and Outlets - Work Problems.

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