Fluid

A tark contains 985m3 of sall solution. with salt concentration =13kg/m3At tine rero, a sall solution with a concertration =50kg/m3 starts to flow into the tank at a rate of 15m3m min. Simultareousty, salt solution flows out of the tank at 14m3mmn so that the volume of solution on the tark is always 865 mi . Amixer in the tarik kepe the concentration of salt in the entire tark undorm so that the concentiatian in the ethluent is the sime as the concentration in the tank. What is the concentrabon in the eftliuent as a function of time