Simple Interest

Author:Subject Experts
7th CBSE
IMPORTANT

Important Questions on Simple Interest

HARD
IMPORTANT

If interest on x for 2 years at R% p.a. is 80, then interest on 2x for 1 year at R% p.a. is _____.

HARD
IMPORTANT

Anil invested a sum of money at a certain rate of simple interest for a period of five years. Had he invested the same sum for a period of eight years for the same rate, the total interest earned by him would have been sixty percent more than the earlier interest amount. Find the rate of interest p.a.

MEDIUM
IMPORTANT

At what rate of interest will Rs. 250 amount to triple its present value in 10 years at simple interest per annum. 

MEDIUM
IMPORTANT

Calculate the amount on Rs. 2500 at 12% per annum for 8 years under simple interest.

EASY
IMPORTANT

A certain sum becomes doubled in 5 years. Find the rate of interest.

MEDIUM
IMPORTANT

In how many years will a certain sum becomes five times itself at 20% per annum simple interest.

MEDIUM
IMPORTANT

Find the difference between the interest obtained for 1000 for 12% per annum for 3 years and that for 1500 at 8% per annum for 112 years (in )

EASY
IMPORTANT

Interest = Amount - _____.

EASY
IMPORTANT

Calculate the simple interest and amount in the following case.

Rs. 3650 for two years six months at 16% per annum.

EASY
IMPORTANT

If the simple interest on a certain sum for 2 years at the rate of 5% per annum is 4000, then find the sum of money (in ).

EASY
IMPORTANT

The amount on 20000 at 5% per annum for 5 years under simple interest (in ) is

EASY
IMPORTANT

Calculate the simple interest and amount in the following case.

Rs. 2500 for three years at 12% per annum.

EASY
IMPORTANT

The simple interest for 1500 at 8% per annum for 3 years is

MEDIUM
IMPORTANT

Match column A with column B

Column A Column B
(i) If SP=120 and CP=100, then (a) 2
(ii) If SP=75 and CP=100, then (b) 5
(iii) if a:b=4:3 and b:c=3:2, then ac is (c) Profit of 20
(iv) 18 km/h=_____m/s (d) Loss of 20
  (e) Profit % is 25%
  (f) Loss % is 25%

EASY
IMPORTANT

The following are the steps involved in finding the simple interest on 1000 for 3 years at the rate of 15%. Arrange them in the sequential order from the first to the last

(A)  Simple interest (in )=100×3×15100

(B) We have I=PRT100

(C) 10×3×15=450

EASY
IMPORTANT

Which of the following yields maximum simple interest for 2 years?

EASY
IMPORTANT

The amount on 25000 at 8% per annum for 6 years under simple interest is

EASY
IMPORTANT

In how many years will a certain sum become 3 times itself at 25% per annum under simple interest ?