₹ 300 and ₹ 360 are the compound interest for two consecutive years. The rate of interest is :

1. 1.2%

2. 12%

3. 120%

4. 20%

A certain sum of money amounts to ₹ 5000 at the end of 5th year and to ₹ 6000 at the end of 6th year. The rate of interest is :

1. 120%

2. 20%

3. 1.2%

4. 12%

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%