The Questions related to Simple Interest and Compound Interest are most commonly asked in most competitive exams conducted by the Staff Selection Commission. It is a scoring topic if you can grasp the basic concepts. In this blog, we will be providing simple and compound interest questions that will be beneficial for the SSC CGL Exam 2026 preparation.
Download Simple and Compound Interest Questions PDF
Candidates preparing for SSC CGL 2026 can download the Simple and Compound Interest Questions PDF from the link provided below. The PDF contains important SSC-level questions with detailed solutions for practice and revision. These questions are based on the latest exam pattern and are highly useful for strengthening your Quantitative Aptitude preparation.
Practice Simple and Compound Interest Questions Live
Below are some Simple and Compound Interest Questions for SSC CGL 2026 for your practice. Attempt these questions online and evaluate your performance according to the SSC CGL exam pattern. Regular practice of interest-based problems will help improve your calculation speed, accuracy, and confidence in the Quantitative Aptitude section.
Q1. A sum of Rs. 12,000, at compound interest becomes double after 5 years. How much will it be after 20 years?
Q2. At what rate of compound interest per annum will a sum of Rs 20000 become Rs 23328 in 2 years?
Q3. What will be the simple interest on Rs. 6,000 at 5% per annum for 3 years?
Q4. The difference between the compound interest and simple interest on Rs. 10,000 at 10% per annum for 2 years is:
Q5. If the compound interest on Rs. 10,000 for 2 years is Rs. 2,100, what is the rate of interest per annum?
Q6. What sum will earn a simple interest of Rs. 4800 in 4 years at the rate of 12% per annum?
Q7. A sum of Rs. 6250 is borrowed at 8% compound interest per annum. What will be the amount after 2 years?
Q8. A man deposited Rs. 5000 in a bank and got Rs. 600 as interest after 3 years. What is the rate of simple interest?
Q9. The compound interest on Rs. 20,000 for 2 years is Rs. 4,200. What is the annual interest rate?
Q10. In how many years will Rs. 5000 amount to Rs. 6200 at 8% per annum simple interest?
Q11. Find the compound interest on Rs. 16000 at 10% per annum for 2 years.
Q12. What is the simple interest on Rs. 4000 at 6% per annum for 5 years?
Q13. The compound interest on Rs. 8000 at 5% per annum for 2 years is:
Q14. A sum of Rs. 10,000 becomes Rs. 11,025 in 1 year at compound interest. What is the rate of interest?
Q15. If the simple interest on Rs. 7500 in 3 years is Rs. 1,800, what is the rate of interest per annum?
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Q16. A sum becomes Rs. 8,820 after 2 years and Rs. 9,261 after 3 years under compound interest. Find the rate.
Q17. What sum will amount to Rs. 6,720 in 2 years at 10% compound interest?
Q18. A certain sum amounts to Rs. 6,400 in 2 years and to Rs. 7,040 in 3 years under compound interest. What is the rate?
Q19. The simple interest on Rs. 7500 at 8% per annum is Rs. 2,400. Find the time.
Q20. Find the compound interest on Rs. 6400 for 3 years at 5% per annum.
Q21. A person invests Rs. 10,000 at 10% compound interest compounded annually. What will be the amount after 3 years?
Q22. A sum of money becomes Rs. 7,744 in 2 years and Rs. 8,518.40 in 3 years at compound interest. Find the rate.
Q23. What is the compound interest on Rs. 5,000 for 3 years at 10% per annum?
Q24. A person borrowed Rs. 4000 for 2 years at simple interest and paid Rs. 480 as interest. What is the rate of interest?
Q25. At what rate will Rs. 6,250 amount to Rs. 7,812.50 in 3 years compounded annually?
Q26. A sum becomes Rs. 13,310 after 3 years at compound interest. If the rate is 10% per annum, find the principal.
Q27. What will be the CI on Rs. 12,000 at 5% per annum for 2 years compounded annually?
Q28. A sum doubles itself in 5 years at compound interest. In how many years will it become 8 times?
Q29. If a sum amounts to Rs. 6,250 in 2 years and Rs. 6,875 in 3 years at compound interest, find the rate.
Q30. A sum of money is invested for 2 years at compound interest. The interest for the second year is Rs. 330 and for the first year is Rs. 300. Find the rate.
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What is Simple Interest?
Simple Interest is the amount earned or paid only on the original principal over a period of time. It does not include interest on interest.
Formula:
Simple Interest = (P × R × T) / 100
Where:
• P = Principal (initial amount)
• R = Rate of interest per annum (%)
• T = Time period in years
This formula is commonly used in SSC CGL exams for quick and direct calculations.
What is Compound Interest?
Compound Interest is the interest calculated not only on the principal amount but also on the interest earned in previous periods. It grows faster than Simple Interest over time.
Formula:
Compound Interest = P × (1 + R/100)^T – P
Where:
• P = Principal (initial amount)
• R = Annual interest rate (%)
• T = Time period in years
This formula is useful for solving questions in SSC CGL Tier 1 and Tier 2 exams.
Common Mistakes Students Make in SSC CGL Exam
Every year, many SSC CGL aspirants lose marks due to avoidable errors. Being aware of these mistakes can help you stay ahead and improve your final score.
- Ignoring exam pattern updates – Not checking the latest syllabus or changes in the Tier structure can lead to poor preparation.
- Skipping mock tests – Without regular mocks, students fail to build exam temperament, time management, and speed.
- Not revising basics – Weak foundational knowledge in Maths, English grammar, or reasoning concepts leads to confusion in tricky questions.
- Guesswork without elimination – Blindly marking answers in negative marking sections results in unnecessary loss of marks.
- Time mismanagement during the exam – Spending too much time on one section (like Quant) often leaves less time for others.
- Ignoring Tier 2 early on – Focusing only on Tier 1 without planning ahead for Tier 2 reduces chances of final selection.
- Not reading questions carefully – Overlooking keywords like “not”, “except”, or specific conditions causes silly mistakes.
- Over-relying on short tricks – Using tricks without understanding the logic can backfire, especially in moderate to tough-level questions.
SSC CGL Simple and Compound Interest – FAQs
Ans: Yes, they are frequently asked in both Tier 1 and Tier 2 exams.
Ans: SI = (P × R × T) / 100
Ans: Yes, except when time is 1 year or rate is 0%.
Ans: Basics of percentages and ratio-proportion.
Ans: Applying SI formula or forgetting compounding effect.
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