24. Initially, a tank contains 400 L of water with 10 kg of salt in solution. Water containing 0.1 kg of salt per liter (L) is entering at a rate of 1 L/min, and the mixture is allowed to flow out of...

Extracted text: 24. Initially, a tank contains 400 L of water with 10 kg of salt in solution. Water containing 0.1 kg of salt per liter (L) is entering at a rate of 1 L/min, and the mixture is allowed to flow out of the tank at a rate of 2 L/min. Let Q(t) be the amount of salt at time t measured in kilograms. What is the right formulation of the differential equation for Q(t)? O dQ 2Q(t) 0.1 dt 400 + t O dQ = 0.1 2Q(t) dt 400 – t - dQ 10 2Q(t) dt 400 400 +t dQ 2Q(t) = 0.1 - dt 400 2Q(t) 400 – t O dQ 0.1 dt 400 -