Question 4 (7 marks) 4.1 You have acquired a loan to boost your chicken and chips restaurant business. From your current daily sales, you are unable to make any investment after paying the monthly loan repayment. After making some calculations, you determined you will need to make R18 000 a day to be able to save some money towards investment. The unit cost of a chicken and chips combo is R40, and you are selling 300 combos a day. Use Goal Seek to determine how many combos you need to sell to make R18 000 a day. (3 marks)

4.2 You decide to include the cost of making the combo to get the profit you make per day. The cost of making a combo varies with the costs of the ingredients, as you sometimes purchase from different suppliers. Varying costs are R25 and R15. Determine how many units you need to sell in a day to still get a revenue of R15 000 at each varying cost of ingredients if selling the combo at R55 each. Scenario 1 at the cost of R25 (2 marks) Scenario 2 at the cost of R15