"UB-sweets" produces only two types of chocolate: A and B. Both the chocolates require Milk and Coco- powder only. To manufacture each unit of A and B, the following quantities are required: Each unit of A requires 1 unit of Milk and 3 units of Coco-powder Each unit of B requires 1 unit of Milk and 2 units of Coco-powder UB has a total of 5 units of Milk and 12 units of Coco-powder. On each sale, UB makes a profit of $6 per unit A sold 55 per unit B sold. If UB wishes to maximize its profit, how many units of B should it produce? Answer: