Compound interest questions Practice Question and Answer

Q: Compounding interest means interest accrues 1506 1

  • 1
    at variable rates throughout the term
    Correct
    Wrong
  • 2
    more quickly than simple interest
    Correct
    Wrong
  • 3
    more slowly than simple interest
    Correct
    Wrong
  • 4
    at the same rate as simple interest
    Correct
    Wrong
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Answer : 2. "more quickly than simple interest"
Explanation :

Answer: B) more quickly than simple interest Explanation: Compounding interest means interest accrues on the interest charged and the principal amount each period the interest is charged. Compound interest is calculated by multiplying the principal amount by one plus the annual interest rate raised to the number of compound periods minus one.The total initial amount of the loan is then subtracted from the resulting value. The formula for calculating compound interest is: [P (1 + i)n] – P = P [(1 + i)n – 1] (Where P = Principal, i = nominal annual interest rate in percentage terms, and n = number of compounding periods.) Take a three-year loan of Rs. 10,000 at an interest rate of 5% that compounds annually. What would be the amount of interest? In this case, it would be: Rs. 10,000 [(1 + 0.05)3] – 1 = 10,000 [1.157625 – 1] = Rs. 1,576.25.   How it grows ::

Q:

A man borrows some money at 3% simple interest per annum and lends it to somebody at 5% interest to be compounded annually. By this he makes a profit of Rs.541 at the end of 3 years. The money he borrowed was-

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    Rs. 15800
    Correct
    Wrong
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    Rs. 18400
    Correct
    Wrong
  • 3
    Rs. 8000
    Correct
    Wrong
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    Rs. 12000
    Correct
    Wrong
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Answer : 3. "Rs. 8000 "

Q:

Find the difference of CI and SI on a sum of Rs. 30240 invested for 3 years at rate of interest per annum.

4217 1

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    Rs. 2500
    Correct
    Wrong
  • 2
    Rs. 2440
    Correct
    Wrong
  • 3
    Rs. 2660
    Correct
    Wrong
  • 4
    Rs. 3120
    Correct
    Wrong
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Answer : 3. "Rs. 2660"

Q:

How much time will it take for an amount of Rs.360 to yield Rs.72 as interest at 5 % p.a of simple interest?

917 1

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    3 years
    Correct
    Wrong
  • 2
    4 years
    Correct
    Wrong
  • 3
    2.5 years
    Correct
    Wrong
  • 4
    3.5 years
    Correct
    Wrong
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Answer : 2. "4 years"

Q:

A sum of money amounted to Rs.720 in 2 years and Rs.792 in 3 years when interest is compounded annually. The annual rate of interest , (in%) is:

1185 0

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    5%
    Correct
    Wrong
  • 2
    7.50%
    Correct
    Wrong
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    7%
    Correct
    Wrong
  • 4
    10%
    Correct
    Wrong
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Answer : 4. " 10%"

Q:

What is the difference between compound interest and simple interest on Rs. 2500 for 2 years at 4% per annum?

765 0

  • 1
    ₹ 4
    Correct
    Wrong
  • 2
    ₹ 20
    Correct
    Wrong
  • 3
    ₹ 40
    Correct
    Wrong
  • 4
    ₹ 400
    Correct
    Wrong
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Answer : 1. "₹ 4 "

Q:

If the interest is compounded half yearly, then interest on Rs.16000 at 5% per annum, at the end of $$ {{1}{1\over 2}}$$ years is.

790 0

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    $$ {1230}{1\over 4}$$
    Correct
    Wrong
  • 2
    $$ {1210}{1\over 4}$$
    Correct
    Wrong
  • 3
    $$ {1215}{1\over 4}$$
    Correct
    Wrong
  • 4
    $$ {1225}{1\over 4}$$
    Correct
    Wrong
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Answer : 1. "$$ {1230}{1\over 4}$$"

Q:

A sum of money was lent at 10% per annum, compounded annually, for 2 years. If the interest was compounded half - yearly, he would have received Rs.660.75 more. Find the sum.

928 0

  • 1
    120000
    Correct
    Wrong
  • 2
    124000
    Correct
    Wrong
  • 3
    104400
    Correct
    Wrong
  • 4
    150000
    Correct
    Wrong
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Answer : 3. "104400 "

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