11. Ah Sung has a business buying and selling parts for machines. You are given the following information about Part Q. At 1 April there were 200 units in the warehouse which cost $3.20 each. In the month of April purchases were: April 5 Units 100 150 100 10 Cost per unit $3.20 $3.00 $3.00 27 At 30 April there were 300 units in the warehouse and the net realisable value of each unit was $3.00. Required Calculate the following for Part Q. Show all workings. (a) The value of inventory at 1 April. (b) The total cost of purchases for April. (c) The value of inventory at 30 April (d) The number of units sold in April. (e) The cost of goods sold for the month of April. [IGCSE 2008)