illustration 11 (Sales Mix): Present the following information to show to the management: (a) the marginal product cost and the contribution per unit; (b) the total contribution and profits resulting from each of the following mixtures: Product Per Unit (Rs.) Direct Materials A 10 B 9 Direct Wages A 3 B 2 Fixed Expenses Rs.800 Variable Expenses Are Allocated To Products As 100% Of Direct Wages. Rs. Sales Price A 20 B 15 200 Sales Mixtures: 1000 Units Of Product A And 2000 Units Of B 1500 Units Of Product A And 1500 Units Of B 2000 Units Of Product A And 1000 Units Of B