4 The following balances were extracted from the books of Faizurah on 30 April 2017 $ Interest on bank deposits 120 Cash at bank 1 700 Insurance 850 Cost of sales 3.500 Inventory 790 Discount received 250 Discount allowed 102 Machinery repairs 2 000 Drawings 880 Sales revenue 9 900 Sales returns 130 Plant and machinery 14 000 Wages and salaries 950 Trade payables 820 Trade receivables 990 Bank loan 5000 Bank deposits 2000 Capital 7 After the balances were extracted on 30 April 2017, the following transactions occurred 1 Faizurah issued a refund cheque of $200 to a credit customer for return of defective goods sold previously. The goods cost $100 2 Fazurah contributed a van worth $70 000 into the business 3 Faizurah took goods worth $150 for her mother's birthday celebration REQUIRED (a) State ono purpose of preparing a trial balance 101 (b) Prepare Faizurah's trial balance as at 30 April 2017 showing the balance on her capital account. Show your workings clearly