A water flow of 40.0 L / s flows in a pipe. At a given point, a mixture of methanol and water is injected with a 40.0% mass fraction of methanol ....

A water flow of 40.0 L / s flows in a pipe. At a given point, a mixture of methanol and water is injected with a 40.0% mass fraction of methanol . The mixture then flows into a tank. The temperature is 20.0 ° C throughout the process. If you want a final mixture in the tank at 1.00% vol in methanol, what should be the injection rate in L / s?