A tank contains 200 gallons of water in which 300 grams of salt is dissolved. A brine solution containing 04 kilograms of salt per gallon of water is pumped into the tank at the rate of 5 gallons per minute, and the well-stirred mixture is pumped out at the same rate. How much salt, In ke, will there be in the tank after a long period of time? Select the correct answer. O:1000 kilograms O 300 kilograms 120 kilograms O:80 kilograms @ none of these