Compound interest problems Practice Question and Answer

Q: A sum of money at compound interest amounts to thrice itself in three years. In how many years will it be 81 times itself? 1316 0

  • 1
    27
    Correct
    Wrong
  • 2
    9
    Correct
    Wrong
  • 3
    12
    Correct
    Wrong
  • 4
    15
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 3. "12"

Q: If rate of interest is 2% more, the amount will exceed Rs. 60 for one year, find the principal? 1315 0

  • 1
    300
    Correct
    Wrong
  • 2
    3,000
    Correct
    Wrong
  • 3
    6,000
    Correct
    Wrong
  • 4
    4,000
    Correct
    Wrong
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Answer : 2. "3,000"

Q:

The difference between CI and SI on a sum of money for 3 years at 5% per annum is Rs.61. Find the sum.

1268 0

  • 1
    ₹ 6000
    Correct
    Wrong
  • 2
    ₹ 8000
    Correct
    Wrong
  • 3
    ₹ 4000
    Correct
    Wrong
  • 4
    ₹ 4680
    Correct
    Wrong
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Answer : 2. "₹ 8000"

Q: Find the difference between SI and CI for three years at 10% per annual rate on Rs 4000 1260 0

  • 1
    Rs 125
    Correct
    Wrong
  • 2
    Rs 126
    Correct
    Wrong
  • 3
    Rs 124
    Correct
    Wrong
  • 4
    Rs 127
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 3. "Rs 124"

Q: Two equal amounts are deposited in two different banks at 12% for 3 years and 4.5 years. The difference between simple interest received is Rs. 72. Find the amount deposited in bank. 1221 0

  • 1
    500
    Correct
    Wrong
  • 2
    400
    Correct
    Wrong
  • 3
    600
    Correct
    Wrong
  • 4
    450
    Correct
    Wrong
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Answer : 2. "400"

Q:

A sum of Rs. 12,000, deposited at compound interest becomes double after 5 years. How much will it be after 20 years? 

1100 0

  • 1
    Rs.1,50,000
    Correct
    Wrong
  • 2
    Rs.1,92,000
    Correct
    Wrong
  • 3
    Rs.1,44,000
    Correct
    Wrong
  • 4
    Rs.1,20,000
    Correct
    Wrong
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Answer : 1. "Rs.1,50,000 "

Q:

Find the difference between compound interest and simple interest on 5000 for 2 years at 8% p.a payable annually.

903 0

  • 1
    45
    Correct
    Wrong
  • 2
    32
    Correct
    Wrong
  • 3
    57
    Correct
    Wrong
  • 4
    84
    Correct
    Wrong
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Answer : 2. "32"

Q:

A sum of money amounts to Rs. 4,840 in 2 years and to Rs. 5,324 in 3 years at compound interest (compounded annually). The rate of interests per annum is

869 0

  • 1
    10%
    Correct
    Wrong
  • 2
    9%
    Correct
    Wrong
  • 3
    11%
    Correct
    Wrong
  • 4
    8%
    Correct
    Wrong
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Answer : 1. "10% "

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