M l aggarwal understanding icse mathematics class 8 Solutions for Chapter 8 simple and compound interest

Exercises in Chapter 8 simple and compound interest Grade 8

Simple and Compound Interest Exercise 8.1

Simple and Compound Interest Exercise 8.2

Simple and Compound Interest Exercise 8.3

Questions in Simple and Compound Interest Exercise 8.1

Find the simple interest on Rs 4000 at 7.5% p.a. for 3 years 3 months. Also, find the amount

What sum of money will yield Rs 170.10 as a simple interest in 2 years 3 months at 6% per annum?

Find the rate of interest when Rs 800 fetches Rs 130 as a simple interest in 2 years 6 months.

Find the time when simple interest on Rs 3.3 lakhs at 6.5% per annum is Rs 75075.

Find the sum of money when

(i) simple interest at $7 \frac{1}{4} \%$ p.a. for years is Rs 2356.25

(ii) the final amount is Rs 11300 at 4% p.a. for 3 years 3 months

How long will it take a certain sum of money to triple itself at $13 \frac{1}{3}$ % per

annum simple interest?

At a certain rate of simple interest Rs 4050 amounts to Rs 4576.50 in 2 years. At the same rate of simple interest, how much would Rs 1 lakh amount to in 3 years?

What sum of money invested at 7.5% p.a. simple interest for 2 years produces twice as much interest as Rs 9600 in 3 years 6 months at 10% p.a. simple interest?

Questions in Simple and Compound Interest Exercise 8.2

Calculate the compound interest on Rs 6000 at 10% per annum for two years.

Salma borrowed from Mahila Samiti a sum of Rs 1875 to purchase a sewing machine. If the rate of interest is 4% per annum, what is the compound interest that she has to pay after 2 years?

Jacob invests Rs 12000 for 3 years at 10% per annum. Calculate the amount and the compound interest that Jacob will get after 3 years.

a man invests Rs 46875 at 4% per annum compound interest for 3 years.

Calculate:

(i) the interest for the first year

(ii) the amount standing to his credit at the end of the second year

(iii) the interest for the third year

Calculate the compound interest for the second year on Rs 6000 invested for 3 years at 10% p.a. Also, find the sum due at the end of the third year.

Calculate the amount and the compound interest on Rs 5000 in 2 years when the rate of interest for successive years is 6% and 8% respectively

Calculate the difference between the compound interest and the simple interest on Rs 20000 in 2 years at 8% per annum.

Questions in Simple and Compound Interest Exercise 8.3

Calculate the amount and compound interest on

(i) Rs 15000 for 2 years at 10% per annum compounded annually.

(ii) Rs 156250 for $1 \frac{1}{2} \text { years }$ years at 8% per annum compounded half-yearly.

(iii) Rs 100000 for 9 months at 4% per annum compounded quarterly.

Find the difference between the simple interest and compound interest on

Rs 4800 for 2 years at 5% per annum, compound interest being reckoned

annually.

Find the compound interest on Rs 3125 for 3 years if the rates of interest for the first, second, and third-year are respectively 4%, 5%, and 6% per annum.

Kamla borrowed Rs 26400 from a Bank to buy a scooter at a rate of 15% p.a. compounded yearly. What amount will she pay at the end of 2 years and 4 months to clear the loan?

Anil borrowed Rs 18000 from Rakesh at 8% per annum simple interest for 2 years. If Anil had borrowed this sum at 8% per annum compound interest,

what extra amount would he have to pay?

Mukesh borrowed 75000 from a bank. If the rate of interest is 12% per

annum, find the amount he would be paying after $1 \frac{1}{2} \text { years }$ years if the interest is

(i) compounded annually

(ii) compounded half-yearly

Aryaman invested Rs 10000 in a company, he would be paid interest at 7% per annum compounded annually. Find

(i) the amount received by him at the end of 2 years

(ii) the interest for the 3rd year

What sum of money will amount to Rs 9261 in 3 years at 5% per annum compound interest?

What sum invested for $1 \frac{1}{2} \text { yea }$ years compounded half-yearly at the rate of 8%

p.a. will amount to Rs 140608?

At what rate percent will Rs 2000 amount to Rs 2315.25 in 3 years at compound interest?

If Rs 40000 amounts to Rs 46305 in $1 \frac{1}{2} \text { years }$ compound interest payable

half-yearly, find the rate of interest per annum.

In what time will Rs 15625 amount to Rs 17576 at 4% per annum compound interest?

Rs 16000 invested at 10% p.a. compounded semi-annually, amounts to Rs

18522. Find the time period of investment

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Chapters in this book

Rational Numbers

Exponents and Powers

Squares and Square Roots

Cubes and Cube Roots

Playing with Numbers

Operation on sets Venn Diagrams

Percentage

Simple and Compound Interest

Direct and Inverse Variation

Algebraic Expressions and Identities

Factorisation

Linear Equations and Inequalities In one Variable

Understanding Quadrilaterals

Constructions of Quadrilaterals

Circle

Symmetry Reflection and Rotation

Visualising Solid Shapes

Mensuration

Data Handling