Mr. Sharma borrowed a certain sum of money at 10% per annum compounded annually. If by paying ₹ 19360 at the end of second year and ₹ 31944 at the end of the third year he clears the debt; find the sum borrowed by him.

The difference between compound interest for a year payable half-yearly and simple interest on a certain sum of money lent out at 10% for a year is ₹ 15. Find the sum of money lent out.

The amount of ₹ 1,000 in 2 years and at 20% compound interest compounded per year is:

1. ₹ 1,200

2. ₹ 1,400

3. ₹ 800

4. ₹ 1,440

The difference between C.I. and S.I. at 10% in 2 years on ₹ 100 is:

1. ₹ 1

2. ₹ 41

3. ₹ 00

4. none of these