a) Explain the purposes for which control accounts are prepared in a business organization. (3 Marks) b) Maji mazuri, a sole trader received his bank statement for the month of June 2022. At that date the bank balance was Sh. 1,521,000 whereas his cash book balance was Sh.4,733,000. His accountant investigated the matter and discovered the following discrepancies: i) Bank charges of Sh.6,000.00 had not been entered in the cashbook. ii) Cheques drawn by Maji Mazuri totaling Sh.45,000.00 had not yet been presented to the bank. iii) He had not entered receipts of Sh.53,000.00 in his cashbook. iv) The bank had not credited Maji Mazuri with receipts of Sh.197,000.00 paid into the bank on 30 June 2022. v) Standing order payments amounting to Sh.124,000.00 had not been entered into the cashbook. vi) In the cashbook Maji Mazuri had entered a payment of Sh149,800.00 as Sh.158,800.00 vii) A cheque for Sh.30,000.00 from a debtor had been returned by the bank marked "refer to drawer" but had not been written back into the cashbook. viii) Maji Mazuri had brought forward the opening cash balance of Sh.658,500.00 as a debit balance instead of a credit balance. ix) An old cheque payment amounting to