You are a trainee accountant working for a small firm of accountants. You have been asked to work on a new client, John Oteng. John recently opened a small shop through rented premises. John has supplied you with the following transactions which have taken place during January 2017, his first month of trading.

1st January	John opened a business bank account with GH10,000 of his own money.
2nd January	GH20,000 bank loan is paid directly into his bank account.
3rd January	John bought office equipment GH17,500 and paid by cheque.
4th January	GH2,000 rent paid by cheque.
5th January	Inventory is purchased on credit from Gyato Limited for GH5,000.
6th January	Inventory is purchased by cheque from Don-Bortey Limited for GH3,000.
13th January	Cash sales deposited at the bank was GH500.
15th January	GH100 cheque paid for an advert in the local newspaper.
19th January	Cash sales deposited at bank was GH1,200.
20th January	GH2,000 cheque paid to Gyato Limited.
27th January	Cash sales deposited at the bank was GH2,500

Required:

1. Complete the relevant nominal ledger accounts for the above transactions and extract a trial balance as at 31^st January, 2017.
2. Write out the double entry required for the goods and the cash taken by John during January, 2017.
3. List and explain four (4) books of prime entry.