Simple Interest

Author:Jayashree Vipin
7th CBSE
IMPORTANT

Important Questions on Simple Interest

EASY
IMPORTANT

The interest paid after 3 years for a certain sum is 900 at 5% rate of interest per annum. The sum is _____.

EASY
IMPORTANT

The interest for 5600 at 15% per annum for one year is _____.

MEDIUM
IMPORTANT

Bindu wants to invest 10,000 in a bank. Bank _____ will be a better option for her to invest the money.

Bank 1:15,000 invested in a bank amounts to 20,175 in 3 years.

Bank 2:24,000  invested in a bank amounts to 34,720 in 4 years.

MEDIUM
IMPORTANT

The rate of interest per annum at which 5,000 will amount to 6,050 in 3 years is _____%.

HARD
IMPORTANT

If 1,200 amounts to 1,740 in 5 years, find the sum that will amount to 2,720 in 4 years at the same rate of interest per annum.

MEDIUM
IMPORTANT

Who gets more money after 5 years?

Vimala who deposited 20,000 in a bank at 11.5% interest per annum or Kamal who deposited 25,000 in a bank at 10.5% interest per annum.

MEDIUM
IMPORTANT

A sum of money amounted to 31,200 at 4% per annum in 5 years. Find the original sum.

MEDIUM
IMPORTANT

Vivan borrowed a sum of money from a bank at 9% per annum. If he paid 5,940 as interest after three years, find the sum he borrowed and the total money he repaid.

EASY
IMPORTANT

10,000 deposited in a bank at the rate of 18% per annum amounted to 22,600 in a few years. Find the time taken.

EASY
IMPORTANT

Find the amount Anita borrowed from a finance company if she paid 3,600 as interest for 3 years at 3% per annum.

MEDIUM
IMPORTANT

Find the unknown quantities in each of the following cases.

Principal (P) Rate per annum (R) Time (T) Interest Amount
10,000 15% 3 years    
6,000 16% 212 years    
4,800 10% 6 months    
5,000   3 years   6,500
7,200 4%   720  
8,000   4 years 4,000  
  11% 6 months 660  
  8% 212 years 17,000  

MEDIUM
IMPORTANT

Calculate the interest and the amount in each of the following cases.

S. No. Principal (P) Rate per annum (R) Time (T) Interest Amount
1 4,000 15% 2 years    
2 12,000 11% 3 years    
3 20,000 1212% 4 years    
4 1,35,000 8% 5 years    

 

MEDIUM
IMPORTANT

In how many years will 25,000 invested at 8% per annum amount to 33,000?

MEDIUM
IMPORTANT

Interest for 4,000 for 2 years is 1,120. Find the rate of interest.

MEDIUM
IMPORTANT

Mr Sajan deposited 25,000 in a bank which pays 11.5% interest per annum. Find the amount he will get after 5 years.

EASY
IMPORTANT

Esabella borrowed 15,000 from a bank for 3 years at the rate of 12% per annum. Find the interest she has to pay during this time.

MEDIUM
IMPORTANT

The amount one gets after 3 years for 12,00,000 at 8% per annum SI is 

MEDIUM
IMPORTANT

The simple interest for 2500 at the rate of 7.5% for 6 months is _____.