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9th ICSE

IMPORTANT

Earn 100

A new car is purchased for $₹ 2, 50, 000$ . Its value depreciates at the rate of $10 %$ in the first year, $8 %$ in $2$ nd year and then $6 %$ every year. Find its value after $4$ years. Write the answer in $₹$ in decimal.

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Important Questions on Compound Interest

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9th ICSE

IMPORTANT

ICSE Mathematics>Chapter 2 - Compound Interest>Exercise>Q 6

The bacteria in a culture grows by

10 %

in the first hour, decreases by

10 %

in the second hour and again increases by

10 %

in the third hour. If the original count of the bacteria in a sample is

10, 000

, find the bacteria count at the end of

3

hours.

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9th ICSE

IMPORTANT

ICSE Mathematics>Chapter 2 - Compound Interest>Exercise>Q 7

The production of refrigerators in a factory rose from

40000

48400

2

years. Find the rate of growth percentage per year.

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IMPORTANT

ICSE Mathematics>Chapter 2 - Compound Interest>Exercise>Q 8

The value of a flat worth

₹ 5, 00, 000

is depreciating at the rate of

10 %

p . a .

In how many years will its value be reduced to

₹ 3, 64, 500

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9th ICSE

IMPORTANT

ICSE Mathematics>Chapter 2 - Compound Interest>Exercise>Q 9

Rachit bought a flat for $₹ 10$ lakh and a car for $₹ 3, 20, 000$ at the same time. The price of the flat appreciates uniformly at the rate of $20 %$ $p . a$ ., while the price of the car depreciates at the rate of $15 %$ $p . a$ . If Rachit sells the flat and car after $3$ years, what will be his profit or loss? Write the answer in $₹$ .

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9th ICSE

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ICSE Mathematics>Chapter 2 - Compound Interest>Exercise>Q 10

8, 000

workers were employed by a company to complete a job in

4

years. At the end of first year,

5 %

of the workers were retrenched. At the end of second year,

5 %

of those working at that time were retrenched. However, to complete the job in time, the number of workers was increased by

10 %

of those working at the end of third year. How many workers were working during the fourth year?

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ICSE Mathematics>Chapter 2 - Compound Interest>Chapter Test>Q 1

Nikita invests

₹ 6, 000

for two years at a certain rate of interest compounded annually. At the end of first year it amounts to

₹ 6, 720

. Calculate the rate of interest in percentage per annum.

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9th ICSE

IMPORTANT

ICSE Mathematics>Chapter 2 - Compound Interest>Chapter Test>Q 1

Nikita invests $₹ 6, 000$ for two years at a certain rate of interest compounded annually. At the end of first year it amounts to $₹ 6, 720$ . Calculate the amount at the end of the second year in $₹$ in decimal.

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9th ICSE

IMPORTANT

ICSE Mathematics>Chapter 2 - Compound Interest>Chapter Test>Q 2

Rohit borrows

₹ 86, 000

from Arun for two years at

5 %

per annum simple interest. He immediately lends out this money to Akshay at

5 %

compound interest compounded annually for the same period. Calculate Rohit’s profit in the transaction at the end of two years. Give the answer in

₹

A new car is purchased for ₹2,50,000. Its value depreciates at the rate of 10% in the first year, 8% in 2nd year and then 6% every year. Find its value after 4 years. Write the answer in ₹ in decimal.

Important Questions on Compound Interest

Learn and Prepare for any exam you want !

A new car is purchased for $₹ 2, 50, 000$ . Its value depreciates at the rate of $10 %$ in the first year, $8 %$ in $2$ nd year and then $6 %$ every year. Find its value after $4$ years. Write the answer in $₹$ in decimal.