4 TASKI (12 marks) Wentworth Hardware Ltd uses a Periodic Inventory System. The beginning inventory of Product DH0254 and information about purchases and sales made during May are shown below May 1 Opening Inventory 2 000 units $15.00 Purchases 1 500 units 17.50 9 Sales 2 000 units 12 Purchases 1 800 units 18.00 21 Sales 1 000 units 24 Sales 1 200 units 26 Purchases 1 000 units 19.00 30 Purchases 500 units 20.00 Selling price of DH0254 is $32 per unit (Ignore GST). Closing inventory on hand at May 31 is 2,600 units Operating expenses for the month were $42.000 Required: a) Using the FIFO method, calculate the cost of May 31 closing inventory and the cost of sales (6 marks) b) Prepare an income statement for Wentworth Hardware Ltd for May, (6 marks)