A man borrows some money at 3% simple interest per annum and lends it to somebody at 5% interest to be compounded annually. By this he makes a profit of Rs.541 at the end of 3 years. The money he borrowed was-

The compound interest on Rs. 6250 at 12% per annum for 1 year, compounded half-yearly is

Find the compound interest on a sum of Rs. 46875 for 2 years at 12% p.a, if interest is compounded 8 months?

A sum borrowed under compound interest doubles itself in 10 years. When will it become fourfold of itself at the same rate of interest?

A sum of money was lent at 10% per annum, compounded annually, for 2 years. If the interest was compounded half - yearly, he would have received Rs.660.75 more. Find the sum.

The simple and compound interest that can be earned in two years at the same rate is Rs 1500 and Rs 1575 respectively. What is the rate (% per annum) of interest?

A sum of Rs.13,000 is to be paid back in 2 equal annual instalments. How much is each instalment if the interest is compounded annually at 8 % per annum?

A certain sum of money at a certain rate doubles itself in 9 years, then in how many years it will become the same sum will be 5 times of itself?