Compound Interest Practice Test Set 2

What will be the compound interest on Rs 30,000 at 10% per annum for 1.5 years, when interest is compounded half-yearly?

A sum was invested for 3 years on compound interest at 6%, 12% and 18% in first, second and third year respectively. The sum amounts to Rs 20,000 in 3 years. Find the principal amount ($\approx$).

Rs 1,700 is lent at compound interest at an annual rate of 22% for 1 year. If the compounding of interest is done half-yearly, then how much more interest will be obtained?

Amit invested an equal sum of money in both simple interest and compound interest schemes. The time period was 2 years at 4% p.a. If compound interest exceeded simple interest by Rs 58, what was the principal?

If in 3 years at simple interest the principal increases by 18%, what will be the compound interest earned on Rs 25,000 in 3 years at the same rate?