Question: A firm produces the goods A and B using the four inputs W, X, Y and Z in the following quantities:
1 unit of A requires 9 units of W, 30 of X, 20 of Y and 20 of Z
1 unit of B requires 13 units of W, 55 of X, 28 of Y and 20 of Z
The firm has available 468 units of W, 1,980 units of X, 1,120 units of Y and 800 units of Z. What production mix will maximize its total profit if each unit of A adds £60 to profit and each unit of B adds £75?