A sum of ₹ 2,000 is put at 10% compound interest. The amount at the end of 2 years will be :

1. ₹ 400

2. ₹ 420

3. ₹ 2420

4. ₹ 4,840

The difference between C.I. and S.I. on ₹ 6,000 at 8% per annum in both the cases and in one year is:

1. ₹ 480

2. nothing

3. ₹ 240

4. none of these

A sum of ₹ 8,000 is invested for 2 years at 10% per annum compound interest. Calculate:

(i) interest for the first year.

(ii) principal for the second year.

(iii) interest for the second year.

(iv) final amount at the end of the second year.

(v) compound interest earned in 2 years.

A man borrowed ₹ 20,000 for 2 years at 8% per year compound interest. Calculate:

(i) the interest for the first year.

(ii) the interest for the second year.

(iii) the final amount at the end of the second year.

(iv) the compound interest for two years.