Solution:
According to the solution of exercise 12, we have
The objective function for minimum cost is
Subject to the constrains;
and
Now, let’s construct a constrain table for the above Table for (i)
Next, solving (i) and (iii), we obtain
On solving (ii) and (iii), we obtain
Here,
It is seen from the table that the minimum value is
So, the required minimum cost is Rs