11. Rectify the following errors:

1. ₹4,500 spent on the extension of Buildings were debited to Repairs A/c.
2. Wages paid to the firm’s own workmen ₹3,600 for the installation of a new machinery were posted to Wages Account.
3. Contractor’s bill for the construction of a godown at a cost of ₹10,000 has been charged to ‘Repairs’ A/c.
4. ₹1,500 paid as Wages to a worker Bahadur Singh, has been debited to his personal account.
5. Old furniture sold for ₹500 has been credited to Sales Account
6. A cheque of ₹620 received from Ram, has been wrongly credited to Shyam.