Solution:
According to the solution of exercise 12, we have
The objective function for minimum cost is
Subject to the constrains;
(i)
(ii)
(iii)
and (non-negative constraints)
Now, let’s construct a constrain table for the above Table for (i)
Next, solving (i) and (iii), we obtain
and
, so the corner point is A
On solving (ii) and (iii), we obtain
and
, so the corner point is
Here, is the shaded feasible region whose corner points are
and
On evaluating the value of
, we get
It is seen from the table that the minimum value is
So, the required minimum cost is Rs at