$(10$ pts$)$ A tank containing $100kg$ of a $60\%$ brine salt$)$ at $33C$ is filled with a $10\%$ salt

solution $(28C)$ at the rate of $10k\frac{g}{m}in.$ The barometric pressure is $101\mathrm{.}5$KPa. Solution is

removed from the tank at the rate of $15k\frac{g}{m}in.$ Find the kilograms of salt in the tank after $10$

min.