QuestionSolve $6 \leq 12x - 4 < 16$ and find time to fill a tank with pipes filling in 9h, 12h, and draining in 15h.

Studdy Solution
Calculate the time.
$$Time = \frac{1}{\frac{1}{5}} =5\, hours$$It will take5 hours to fill the tank with all pipes in operation.