A tank contains 200 liters of fluid in which 30 grams of saltis dissolved. Brine containing 1 gram of salt per liter is thenpumped into the tank at a rate of 4 L/min; the well-mixedsolution is pumped out at the same rate. Find the number A(t)of grams of salt in the tank at time t.Solve with assuming that pure water is pumped intothe tank.

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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.