Simple Interest Questions and Answers

a sum of money at simple interest amounts to Rs. 2240 in 2 years and to Rs. 2600 in 5 years. What is the principal amount ?

For how many years should Rs. 600 be invested at 10% p.a. in order to earn the same simple interest as is earned by investing Rs. 800 at 12% p.a. for 5 years ?

The simple interest on a certain sum of money at the rate of 5% p.a. for 8 years is Rs. 840. At  what rate of interest the same amount of interest can be received on the same sum after 5 years ?

The simple interest on Rs. 10 for 4 months at the rate of 3 paise per rupee per month is

A person takes a loan of Rs. 200 at 5% simple interest.He returns Rs. 100 at the end of 1 year. In order to clear his dues at the end of 2 years, he would pay :

Gulshan Kumar borrows Rs. 300 at 5% and Rs. 450 at 6% at the same time and on the condition that the whole loan will be prepaid when the total interest amounts to Rs. 126. The loan will have to be repaid after how many years ?

Prabhat took a certain amount as a loan from bank at the rate of 8% p.a. S.I. and gave the same amount to ashish as a loand at the rate of 12% p.a. If at the end of 12 years. He made a profit of Rs. 320 in the deal, what was the original amount ?

Vishal lent Rs. 150 to Sandeep for 4 years and Rs. 600 to Deepak for 2 years. If he receives Rs. 90 as simple interest altogether, the rate of interest is :

Rahul borrowed Rs. 830 from Mr. Lal 12% p.a. S.I. for 3 years. He then added some more money to the borrowed sum and lent it to Shobha for the same period at 14% p.a. rate of interest. If Rahul gains Rs. 93.90 in the whole transaction, how much money did he add from his side ?

The difference between the interests received from two different banks on Rs. 500 for 2 years, is Rs. 2.50. The difference between their rates is :