18) Nitin borrowed some money at the rate of 6%p.a for the next 5 years and 13%p.a for the period beyond eight years. If the total interest paid by him at the end of eleven years is Rs.8160, how much money did he borrow?

- A)Rs.8000
- B)Rs.10,000
- C)Rs.12,000
- D)Data Inadequate
- E)None of these

**Answer: **
A