Simple Interest
Simple Interest: Overview
This Topic covers sub-topics such as Principal Amount, Lending and Borrowing Money, Interest as Charge on Borrowed Money, Simple Interest as Percentage, Final Amount for Repayment and, Finding Simple Interest for Multiple Years
Important Questions on Simple Interest
A and B jointly owe to C. A pays to C, B not knowing this pays another to C.Is C bound to return received extra by him.

If a sum of money doubles itself in years, then the rate of interest is.

The simple interest on at per annum for months is.

The total interest becomes equal to the principal in years at the rate of . The value of is:

A man invested in the bank account for his two daughters whose ages are years and years in such a way that they will get equal amount at the age of years. Find the share of the elder girl, if the rate of interest is p.a.


Anuj has deposited in a bank offering a rate of interest per annum, while Shiva has deposited in a bank offering a rate of interest per annum. Who can withdraw more money after year?

What is the formula for calculating rate of interest.

A principal becomes at the rate of years. Find the principal.

I lent to Manish for years and to Samar for years. Find the rate of interest if I get an interest of in the end.

A person wants to receive every quarter for years at p.a. rate of interest. How much he should invest now?

If in years becomes , then the rate of interest is _____ per annum.

A moneylender received per year more than interest because the rate of interest increased from p. a. to p. a. What amount did he lend? What amount will he get as interest in the next two years if there is no additional charge in the rate of interest?

Ashish lent to Sunidhi at per annum simple interest. After years, Sunidhi discharged the debt by giving a watch and in cash. What is the value of the watch?

Sumit has lent to Vishal at per annum formonths. How much will Sumit get from Vishal aftermonths?

A sum becomes times at per annum. At what rate, the sum becomes times?

Shweta went to a bank to deposit some money in her savings account. Shweta was told that she would get, &rupee;5 as interest for every &rupee;100, per year. The interest rate is _____ % per year.

In a bank the quarterly interest for a fixed deposit is &rupee;2,500. If the principal amount is &rupee;1,00,000, find the interest rate for a year.

If the difference between the total amount and the principal amount at the end of 4 quarter years is &rupee;3,600, the rate of interest per annum for a principal amount of &rupee;1,00,000 will be _____ %.

Kamala lent a sum of &rupee; 7,500 in the beginning of a year at a certain rate of interest. After 8 months, she again lent a sum of &rupee; 3,600 but at a rate of interest that was twice the earlier one. At the end of the year, she earned &rupee; 400 from both the loans. The original rate of interest was _____ % per year .
