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The following extract from the cash book of Joan for the month of July shows the company's bank transactions: The cheque issued to Halim in the month of June is unpresented. The company's bank statement for the same period is as follows: Required: a. Prepare a corrected cash book using the information given above. (8 marks) b. Draw up a bank reconciliation statement. (3 marks) c. Discuss the purpose of a bank reconciliation. (4 marks)