Consider the following product mix problem: Let x₁ denote number of units of Product 1 to be produced daily and x₂ the number of units of Product 2 to be produced daily. The production of Product 1 requires one hour of processing time in department D₁. Production of 1 unit of Product 2 requires 2 hours of processing time in department D1 and one hour in department D₂. The number of hours available in department D₁ are 32 hours and in department D₂, 8 hours. The contribution of one unit of Product 1 is Rs. 200 and of Product 2 is Rs. 300.

The solution to this LP model is given below:

Given the dual of the primal model. Obtain the optimum solution to the dual LP model from the above table. Interpret the dual variables.