A man invested ₹46875 at 4% per annum compound interest for 3 years. Calculate :

(i) the interest for the first year.

(ii) the amount standing to his credit at the end of the second year.

(iii) the interest for the third year.

Calculate the compound interest for the second year on ₹8000 invested for 3 years at 10% p.a.

Also find the sum due at the end of third year.

Ramesh invested ₹12800 for three years at the rate of 10% per annum compound interest. Find :

(i) the sum due to Ramesh at the end of the first year.

(ii) the interest he earns for the second year.

(iii) the total amount due to him at the end of three years.

The simple interest on a sum of money for 2 years at 12% per annum is ₹1380. Find :

(i) the sum of money.

(ii) the compound interest on this sum for one year payable half-yearly at the same rate.