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Home › Quantitative Aptitude › Compound Interest

Compound Interest — Quantitative Aptitude Questions & Practice

Practise 437 Compound Interest questions from Quantitative Aptitude for competitive exams such as UPSC, Banking, SSC and Railway. Read the worked questions below, check every answer with an explanation, and track what you get wrong.

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Practice questions on Compound Interest — with answers

Try each question first, then open the answer. Explanations are included.

1. Find the Compound Interest on Rs. 1000 at 25% per annum for 2 years, compounded annually.

  1. A421.88
  2. B506.25
  3. C562.5
  4. D703.12
Show answer

Answer: C

CI = P[(1+R/100)^2 - 1] = 1000[(1+25/100)^2 - 1] = Rs. 562.5.

2. Find the Compound Interest on Rs. 1055 at 20% per annum for 2 years, compounded annually.

  1. A464.2
  2. B533.83
  3. C557.04
  4. D487.41
Show answer

Answer: A

CI = P[(1+R/100)^2 - 1] = 1055[(1+20/100)^2 - 1] = Rs. 464.2.

3. Find the Compound Interest on Rs. 1110 at 4% per annum for 2 years, compounded annually.

  1. A113.22
  2. B76.99
  3. C100.58
  4. D90.58
Show answer

Answer: D

CI = P[(1+R/100)^2 - 1] = 1110[(1+4/100)^2 - 1] = Rs. 90.58.

4. Find the Compound Interest on Rs. 1165 at 8% per annum for 3 years, compounded annually.

  1. A226.92
  2. B257.18
  3. C378.2
  4. D302.56
Show answer

Answer: D

CI = P[(1+R/100)^3 - 1] = 1165[(1+8/100)^3 - 1] = Rs. 302.56.

5. Find the Compound Interest on Rs. 1220 at 10% per annum for 3 years, compounded annually.

  1. A343.25
  2. B403.82
  3. C444.2
  4. D363.44
Show answer

Answer: B

CI = P[(1+R/100)^3 - 1] = 1220[(1+10/100)^3 - 1] = Rs. 403.82.

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