Thembi is a trader. She maintains a full set of accounting records and posts the totals of the sales, purchases and returns journals to the ledger each month.

On 1 March 20–1 the balances in her accounts included the following:
                                                              $
Sales .................................         149 200
Purchases .........................          99,520
Sales returns ......................          1,940
Purchases returns ................       2,090
Musa, a credit customer .......     1,110
Siwela, a credit supplier .........       800

The following transactions took place in March 20–1.

March

4 Sold goods on credit to Musa, list price $800, less 20% trade discount
11 Musa returned half of the goods purchased on 4 March
17 Purchased goods on credit from Siwela, list price $900, less 15% trade discount
20 Returned goods to Siwela, purchased on 17 March, list price $300
27 Paid Siwela a cheque for the amount owing on 1 March less 2% cash discount
30 Musa paid $1 000 by credit transfer on account

a. Enter the balances on 1 March in the appropriate accounts.
b. Enter the transactions for March in the sales journal, purchases journal, sales returns journal and purchases returns journal.
c. Post the entries from the journals to the ledger accounts.
d. Enter the transactions on 27 and 30 March in the accounts of Siwela and Musa respectively.
e. Balance the accounts of Musa and Siwela and bring down the balances on1 April 20–1.