What will be the compound interest (compounded annually) of 3 years at the rate of 12.5 percent on an amount of Rs. 5120?

A sum of money doubles itself in 4 years compound interest. It will amount to 8 times itself at the same rate of interest is -

Anu invested Rs. 15000 at the rate of interest 10% p.a. for one year. If the compound interest is compounded at every six months, what amount will Anu get at the end of the year?

If the compound interest rate is 20%  per year, compounded half-yearly, then what will be the interest of two years on the principal of 1,00,000?

The difference between the compound interest and simple interest on a certain sum at the rate of 5% p.a in 3 years is Rs. 15.25. The sum is:

A sum of Rs. 8000 will amount to Rs. 8820 in 2 years if the interest is calculated every year. The rate of compound interest is 

A sum of money doubles itself at compound interest in 15 years. In how many years it  will become eight times?

The difference between the compound and the simple interest on a sum for 2 years at 10 % per annum , when the interest is compounded annually, is Rs.28. If the yearly interest were compounded half yearly, the difference in the two interests will be