Find the rate at which a sum of money will become four times the original amount in 2 years, if the interest is compounded half-yearly.

Find the rate at which a sum of money will double itself in 3 years, if the interest is compounded annually.

What sum will become Rs 9826 in 18 months if the rate of interest is 5/2 % per annum and the interest is compounded half-yearly?

At what rate of interrest per annum will a sum of Rs 62,500 earn a compound interest of Rs 5,100 in one year ? The interest is to be compounded half-yearly.

What sum will amount to Rs 4913 in 18 months, if the rate of interest is 12 1/2 % per annum, compounded half-yearly?

A man borrowed 16,000 for 3 years under the following terms: 20% simple interest for the first 2 years. 20% C.I. for the remaining one year on the amount due after 2 years, the interest being compounded half-yearly. Find the total amount to be paid at the end of three years.

Simple interest on a sum of money for 2 years at 4% growth rate is Rs 450. Find compound interest on the same sum and at the same rate for 1 year, if the interest is reckoned half yearly.

Find the rate percent per annum if Rs 2000 amount to Rs 2662 in 1.5 years, interest being compounded half-yearly?

Simple interest on a certain sum of money at 9% is rupees 450 in 2 years . Find the compound interest. On the same sum , at the same rate for 1 year, if the interest is reckoned half yearly .

Find the compound interest on Rs 1000 at the rate of 8% per annum for one and a half years when interest is compound half-yearly.

Find, to the nearest rupee, the amount and the compound interest on 9000 for 1 (1)/(2) years at 8% per annum, the interest being compounded half-yearly.