A sum of Rs. 2500 is invested for 2 years at 20% per annum, interest compounded half-yearly. Find the compound interest.

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

Find the compound interest on Rs 5000 for 1 year at 8% per annum, compounded half-yearly.

Find the amount of Rs. 8000 in 1 year at 5% per annum compound interest payable half-yearly

Compute the compounded interest on Rs 12000 for 2 years at 20% per annum when compounded half-yearly.