A sum of Rs. 1000 is invested on compound interest (Compounded annually) for three years. If the rate of interest is 10% per annum for the first two years and 50% per annum for the third year, what will be the interest?

A certain sum on $13\frac{1}{2}\%$ per annum simple interest amounts to Rs. 2502.50 in 4 years. Find the sum.

At what rate of compound interest per annum, a sum of Rs 1800 becomes Rs 2178 in two years?

On compound interest, Rs. 2,000 amounts to Rs. 2,226.05 in 2 years. What is the rate of interest per annum ?

What is the least value of n (n is number of Years), the sum of money put out at 20% of CI (Compound Interest) will be more than double?

Consider the compound interest of the following

(A) The compound interest on Rs 16000 at 20% per annum for 9 months, compounded quarterly is: Rs 2522

(B) The compound interest on Rs 2800 at 10% per annum for 18 months, compounded annually is: Rs 434

Choose the correct statement(s):

The difference between compound interest and simple interest on a sum for 2 years at 20% per annum, when the interest is compounded annually is ₹32. If the interest were compounded half-yearly, the difference in two interests would be: