Rectify the following errors by passing Journal entries:
(i) Old furniture sold for Rs. 500 has been credited to Sales Account.
(ii) Machinery purchased on credit from Raman for Rs. 2,000 recorded through Purchases Book as Rs. 16,000.
(iii) Cash received from Rajat Rs. 5,000 was posted in the debit of Bhagat as Rs. 6,000.
(iv) Depreciation provided on machinery Rs. 3,000 was posted to machinery Account as Rs. 300.