Birim Limited produces three products using the same raw material. The raw material is in short supply and only 3,000 kilograms shall be available in April 20x9, at a cost of GH1,500 per kilogram The budgeted costs and other data related to April 20x9 are as follows: Products X Y Z Maximum demand (units) 1,000 800 1,200 Selling price per unit (GH) 3,750 3,500 4,500 Material used per unit (kg) 1.6 1.2 1.8 Labour hours per unit (GH75 per hour) 12 16 15 Required: Determine the number of units that should be produced by the company to earn maximum profit. (Total: 10 marks)