Compound interest questions Practice Question and Answer

Q:

What will be compound interest on a sum of Rs. 1000 at the rate of interest 10% after 5 years?

1207 0

  • 1
    Rs. 610.51
    Correct
    Wrong
  • 2
    Rs. 559.45
    Correct
    Wrong
  • 3
    Rs. 665.50
    Correct
    Wrong
  • 4
    Rs. 665.51
    Correct
    Wrong
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Answer : 1. "Rs. 610.51"

Q:

Rs.4000 becomes Rs. 5000 in 4 years at a certain rate of compound interest. What will be the sum at the end of 12 years?

1696 0

  • 1
    Rs. 7712.50
    Correct
    Wrong
  • 2
    Rs. 7812.50
    Correct
    Wrong
  • 3
    Rs. 7612.50
    Correct
    Wrong
  • 4
    Rs. 7512.50
    Correct
    Wrong
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Answer : 2. "Rs. 7812.50"

Q:

The simple interest on Rs. 12000 at a certain rate of interest in five years is Rs. 7200. Find the compound interest on the same amount for five years at the same rate of interest.

3643 0

  • 1
    Rs. 3502.80
    Correct
    Wrong
  • 2
    Rs. 3052.40
    Correct
    Wrong
  • 3
    Rs. 3054.80
    Correct
    Wrong
  • 4
    Rs. 3052.80
    Correct
    Wrong
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Answer : 4. "Rs. 3052.80"

Q:

A sum of money placed at compound interest triples itself in 9 year. In how many years will if amount to 243 times itself?

1284 0

  • 1
    27 years
    Correct
    Wrong
  • 2
    36 years
    Correct
    Wrong
  • 3
    45 years
    Correct
    Wrong
  • 4
    54 years
    Correct
    Wrong
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Answer : 3. "45 years"

Q:

The compound interest on Rs.30,000 at 7% per annum is Rs. 4347. The period (in years) is:

923 0

  • 1
    Correct
    Wrong
  • 2
    3
    Correct
    Wrong
  • 3
    2
    Correct
    Wrong
  • 4
    4
    Correct
    Wrong
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Answer : 3. "2"
Explanation :

We know that
$$ {A=P{(1+{r\over 100}})}^{t}$$

Putting the value we can get answer 

Q:

What is a difference between simple interest and compound interest in 1 year at a rate of 10 percent on an amount of Rs. 1200. If interest is half yearly compounded?

975 0

  • 1
    5 Rupees
    Correct
    Wrong
  • 2
    6 Rupees
    Correct
    Wrong
  • 3
    3 Rupees
    Correct
    Wrong
  • 4
    9 Rupees
    Correct
    Wrong
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Answer : 3. "3 Rupees"

Q:

There is 80% increase in amount in 5 years at simple interest. What will be the compound interest of Rs. 20,000 after 3 years at the same rate?

977 0

  • 1
    Rs.1000
    Correct
    Wrong
  • 2
    Rs.11217.92
    Correct
    Wrong
  • 3
    Rs.11717.20
    Correct
    Wrong
  • 4
    Rs.13217.92
    Correct
    Wrong
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Answer : 2. "Rs.11217.92"

Q:

Rahul plans to buy a scooter for his sister for which he saves Rs. 15625 at the start of every year for 3 year. If the rate of CI is 4% pa. then amount at which he plans to buy the scooter is (in Rs.)

846 0

  • 1
    75489
    Correct
    Wrong
  • 2
    42751
    Correct
    Wrong
  • 3
    50726
    Correct
    Wrong
  • 4
    48563
    Correct
    Wrong
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Answer : 3. "50726"

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