Solution:

According to the solution of exercise 14,

we have Maximize subject to constrains

Let’s construct a constrain table for the above

Table for (i)

Table for (ii)

Table for (iii)

On solving (i) and (ii), we obtain and

It can be seen that the shaded region is the feasible region whose corner points are , 150), .

Evaluating the value of , we have

It is seen from the above table that the maximum value is 48000 .

So, the maximum value of is 48000 at which means 150 sweaters of each type.