A sum of money, lent out at C.I. amounts to ₹ 4500 in 6 years. If rate of C.I. is 12%, the same money will amount in 7 years to rupees :

1. 540

2. 5040

3. 5400

4. 4725

For two consecutive years, a sum lent out at C.I. earns ₹ 600 and ₹ 690 respectively. The rate of C.I. is :

1. 12%

2. 18%

3. 15%

4. 5%

A certain sum amounts to ₹ 5292 in two years and ₹ 5556.60 in three years, interest being compounded annually. Find :

(i) the rate of interest

(ii) the original sum.

Mohit invests ₹ 8000 for 3 years at a certain rate of interest, compounded annually. At the end of one year, it amounts to ₹ 9440. Calculate :

(i) the rate of interest per annum.

(ii) the amount at the end of the second year.

(iii) the interest accrued in the third year.