Question 3 a. [12 Marks] Company A is a manufacturer of refrigerators. Its annual cost data is as given in Table Q3. If the company sold 720 units of refrigerators in a year, calculate manufacturing cost per unit. Calculate the selling price for a refrigerator to obtain a 30% profit margin. Based on the annual cost data, explain ONE (1) way to reduce the manufacturing cost of the refrigerators. Table Q3 Raw material and components cost RM875,300 Direct labour RM125,000 Direct expenses RM15,000 Plant manager and staff RM150,000 Utilities for plant RM25,000 Taxes and insurance RM18,000 Plant and equipment depreciation RM63,000 Warehouse expenses RM28,000 Engineering salaries and expenses RM76,000 Administrative staff salaries RM82,000 Sales staff, salaries and commissions RM71,000 Total annual sales 720 units Profit margin 30% b. Explain the difference between thermoplastics and thermosets. Select one engineering product that you are familiar with, explain the reasons it is made by thermoplastics or thermosets. [8 Marks]