please provide only part A and B

Question 5 Tedarant alsb 1863) ZiZo Corp. manufactures car engines and has the following cost structure for 3 years: 1800 clan ISM 2017 2018 2019 VO 10,000 0 5,000 5,000 20 30,000 Number of units produced each year Units in beginning stock Units sold 25,000 ? Units in ending stock Selling price per unit JATOT Variable cost per unit: Direct materials Direct Labour Variable manufacturing overhead Variable selling and admin expenses Fixed costs per year: Fixed manufacturing overhead Fixed selling and admin expenses Additional information for the penk to puor second year: Return on Investment Operating profit Too Average Operating Assets REQUIRED muor TO.O nuort 20.0 zuod quo a. Prepare a profit and loss account for each year using the contribution margin format. (10 marks) triph b. Reconcile between the absorption and the variable costing profit figures for each year. (4 marks) bate. Critically discuss the differences between variable costing and absorption costing. (5 marks) Page-9-of 12 5322 20,000 ? 25,000 ? 50,000 20,000 10% 30,000 10 million 000,08 000,0% 000,0 close beaubong alinu to edmul d. Based on your above analyses and additional information for year 2018, prepare a report that calculates and comments on 000 the company's (a) margin; (b) turnover and (c) ROI during this specific year. loota onibing tinu neqat (6 marks) TOTAL 25 marks 3