If a principal amount of TK. 4000 earns TK. 1600 as interest in 5 years, what is the rate of interest per annum?

What is the simple interest earned on TK. 1500 in 4 years at an interest rate of 5% per annum?

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 does TK. 4000 earn in 8 years at a rate of 7% per annum?

How much simple interest will be earned on TK. 6000 in 2 years at an interest rate of 8% per annum?

A sum of TK. 2500 grows to TK. 3250 in 5 years at simple interest. What is the rate of interest?

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

Paul invests TK. 3000 for one year at a rate of 6%. How much interest will he earn at the end of that year?

A man wishes to invest TK. 1200. He can invest in a math club, which pays simple interest of 8% for 3 years. What is the amount in his account after 3 years?

If a sum of TK. 4500 amounts to TK. 5400 in 3 years at simple interest, what is the rate of interest?