An amount of TK. 4500 is invested at a simple interest rate of 12% per annum. If the interest earned is TK. 2160, how many years was the money invested?

How much interest is earned on TK. 2000 in 3 years at a rate of 5% per annum?

A sum of TK. 12,500 amounts to TK. 15,500 in 4 years at the rate of simple interest. What is the rate of interest?

A sum of money triples itself in 10 years at simple interest. What is the rate of interest per annum?

If TK. 1200 is invested for 5 years at a rate of 8%, what will be the total amount after the investment period?

A sum of money earns TK. 2400 as simple interest at 5% per annum over 4 years. What is the principal amount?

A sum of TK. 8000 grows to TK. 8800 in 4 years at simple interest. What is the amount of simple interest?

Mr. John deposited TK. 40,000 in a bank and earned simple interest at 7% per annum for two years. Calculate the interest earned at the end of the period.

If simple interest for 2 years for a sum is TK. 600 and compound interest for the same sum for 2 years and the same rate of interest is TK. 645, what will be the rate of interest?

A sum of TK. 5000 amounts to TK. 6000 in 4 years at simple interest. What is the rate of interest per annum?