2. Rectify the following errors:

1. Credit sales to Mohan ₹7,000 were recorded as ₹700.
2. Credit purchases from Rohan ₹9,000 were recorded as ₹900.
3. Goods returned to Rakesh ₹4,000 were recorded as ₹400.
4. Goods returned from Mahesh ₹1,000 were recorded as ₹100.