Simple Interest is an important topic in Quantitative Aptitude and is frequently asked in competitive examinations such as SSC, Railway, Banking, Defence, Police and other government exams. A good understanding of Principal, Rate, Time, Simple Interest and Amount is essential for solving these questions quickly and accurately.
This practice set contains 100+ Simple Interest questions with answers and explanations. The questions cover basic formulas, finding interest, principal, rate and time, calculating amount, comparison-based problems, and other important concepts commonly asked in competitive exams.
Try to solve each question yourself before clicking on View Answer. Regular practice will help improve your calculation speed, accuracy and confidence in solving Simple Interest problems.
Q1. What is the simple interest on ₹5,000 at 10% per annum for 2 years?
A. ₹500
B. ₹750
C. ₹1,000
D. ₹1,500
View Answer
Simple Interest = (P × R × T) / 100 = (5000 × 10 × 2) / 100 = ₹1,000.
Q2. What is the simple interest on ₹8,000 at 5% per annum for 3 years?
A. ₹800
B. ₹1,000
C. ₹1,200
D. ₹1,500
View Answer
SI = (8000 × 5 × 3) / 100 = ₹1,200.
Q3. Find the simple interest on ₹12,000 at 8% per annum for 2 years.
A. ₹1,720
B. ₹1,920
C. ₹2,000
D. ₹2,120
View Answer
SI = (12000 × 8 × 2) / 100 = ₹1,920.
Q4. What will be the simple interest on ₹10,000 at 6% per annum for 4 years?
A. ₹2,000
B. ₹2,200
C. ₹2,400
D. ₹2,600
View Answer
SI = (10000 × 6 × 4) / 100 = ₹2,400.
Q5. A sum of ₹6,000 is invested at 7% per annum for 3 years. Find the simple interest.
A. ₹1,120
B. ₹1,260
C. ₹1,360
D. ₹1,420
View Answer
SI = (6000 × 7 × 3) / 100 = ₹1,260.
Q6. Find the amount on ₹5,000 at 10% simple interest per annum for 2 years.
A. ₹5,500
B. ₹5,800
C. ₹6,000
D. ₹6,200
View Answer
SI = ₹1,000.
Amount = Principal + SI = ₹5,000 + ₹1,000 = ₹6,000.
Q7. What is the simple interest on ₹15,000 at 4% per annum for 5 years?
A. ₹2,500
B. ₹3,000
C. ₹3,500
D. ₹4,000
View Answer
SI = (15000 × 4 × 5) / 100 = ₹3,000.
Q8. A sum of ₹7,500 earns ₹1,500 as simple interest in 4 years. What is the rate of interest?
A. 4%
B. 5%
C. 6%
D. 7%
View Answer
R = (SI × 100) / (P × T) = (1500 × 100) / (7500 × 4) = 5%.
Q9. A sum of ₹4,000 earns ₹800 as simple interest at 5% per annum. Find the time.
A. 2 years
B. 3 years
C. 4 years
D. 5 years
View Answer
T = (SI × 100) / (P × R) = (800 × 100) / (4000 × 5) = 4 years.
Q10. If the simple interest on a sum at 8% per annum for 5 years is ₹2,000, find the principal.
A. ₹4,000
B. ₹5,000
C. ₹6,000
D. ₹7,000
View Answer
P = (SI × 100) / (R × T) = (2000 × 100) / (8 × 5) = ₹5,000.
Q11. Find the simple interest on ₹20,000 at 5% per annum for 2 years.
A. ₹1,500
B. ₹1,800
C. ₹2,000
D. ₹2,200
View Answer
SI = (20000 × 5 × 2) / 100 = ₹2,000.
Q12. What is the amount of ₹8,000 after 5 years at 6% simple interest per annum?
A. ₹9,800
B. ₹10,000
C. ₹10,400
D. ₹10,800
View Answer
SI = (8000 × 6 × 5) / 100 = ₹2,400.
Amount = ₹8,000 + ₹2,400 = ₹10,400.
Q13. If the principal is ₹9,000, rate is 10% and time is 3 years, find the amount.
A. ₹10,700
B. ₹11,000
C. ₹11,700
D. ₹12,000
View Answer
SI = (9000 × 10 × 3) / 100 = ₹2,700.
Amount = ₹11,700.
Q14. What is the simple interest on ₹2,500 at 12% per annum for 2 years?
A. ₹500
B. ₹550
C. ₹600
D. ₹650
View Answer
SI = (2500 × 12 × 2) / 100 = ₹600.
Q15. A sum becomes ₹7,200 in 2 years at 10% simple interest. Find the principal.
A. ₹5,500
B. ₹6,000
C. ₹6,200
D. ₹6,500
View Answer
Amount = P(1 + RT/100).
7200 = P(1 + 20/100) = 1.2P.
P = ₹6,000.
Q16. At what rate will ₹5,000 earn ₹1,500 simple interest in 6 years?
A. 4%
B. 5%
C. 6%
D. 7%
View Answer
R = (1500 × 100) / (5000 × 6) = 5%.
Q17. How long will ₹10,000 take to earn ₹2,000 at 5% simple interest?
A. 3 years
B. 4 years
C. 5 years
D. 6 years
View Answer
T = (2000 × 100) / (10000 × 5) = 4 years.
Q18. Find the principal if the simple interest is ₹1,800 at 6% per annum for 5 years.
A. ₹5,000
B. ₹6,000
C. ₹7,000
D. ₹8,000
View Answer
P = (1800 × 100) / (6 × 5) = ₹6,000.
Q19. What is the simple interest on ₹3,000 at 15% per annum for 4 years?
A. ₹1,500
B. ₹1,600
C. ₹1,800
D. ₹2,000
View Answer
SI = (3000 × 15 × 4) / 100 = ₹1,800.
Q20. A sum of ₹12,500 is invested at 8% per annum for 3 years. Find the amount.
A. ₹14,500
B. ₹15,000
C. ₹15,500
D. ₹16,000
View Answer
SI = (12500 × 8 × 3) / 100 = ₹3,000.
Amount = ₹15,500.
Q21. If ₹6,000 becomes ₹7,800 in 3 years at simple interest, what is the rate?
A. 8%
B. 9%
C. 10%
D. 12%
View Answer
SI = 7800 − 6000 = ₹1800.
R = (1800 × 100) / (6000 × 3) = 10%.
Q22. A sum of ₹4,500 is invested at 8% per annum for 2 years. Find the amount.
A. ₹5,120
B. ₹5,180
C. ₹5,220
D. ₹5,300
View Answer
SI = (4500 × 8 × 2) / 100 = ₹720.
Amount = ₹5,220.
Q23. Find the simple interest on ₹7,200 at 5% per annum for 2.5 years.
A. ₹800
B. ₹850
C. ₹900
D. ₹950
View Answer
SI = (7200 × 5 × 2.5) / 100 = ₹900.
Q24. Find the simple interest on ₹4,000 at 6% per annum for 9 months.
A. ₹160
B. ₹180
C. ₹200
D. ₹220
View Answer
9 months = 3/4 year.
SI = (4000 × 6 × 3/4) / 100 = ₹180.
Q25. What is the simple interest on ₹8,000 at 9% per annum for 8 months?
A. ₹400
B. ₹480
C. ₹520
D. ₹560
View Answer
8 months = 2/3 year.
SI = (8000 × 9 × 2/3) / 100 = ₹480.
Q26. Find the simple interest on ₹10,000 at 12% per annum for 6 months.
A. ₹500
B. ₹600
C. ₹700
D. ₹800
View Answer
6 months = 1/2 year.
SI = (10000 × 12 × 1/2) / 100 = ₹600.
Q27. Find the simple interest on ₹15,000 at 8% per annum for 9 months.
A. ₹800
B. ₹850
C. ₹900
D. ₹950
View Answer
9 months = 3/4 year.
SI = (15000 × 8 × 3/4) / 100 = ₹900.
Q28. Find the simple interest on ₹2,400 at 10% per annum for 3 months.
A. ₹40
B. ₹50
C. ₹60
D. ₹70
View Answer
3 months = 1/4 year.
SI = (2400 × 10 × 1/4) / 100 = ₹60.
Q29. A sum of ₹9,000 earns ₹1,350 simple interest in 2.5 years. Find the rate.
A. 5%
B. 6%
C. 7%
D. 8%
View Answer
R = (1350 × 100) / (9000 × 2.5) = 6%.
Q30. A sum of ₹8,000 earns ₹1,600 simple interest at 10% per annum. Find the time.
A. 1 year
B. 2 years
C. 3 years
D. 4 years
View Answer
T = (1600 × 100) / (8000 × 10) = 2 years.
Q31. If the rate of simple interest is 10% per annum, what interest will ₹1,000 earn in 1 year?
A. ₹50
B. ₹100
C. ₹150
D. ₹200
View Answer
SI = 10% of ₹1,000 = ₹100.
Q32. At 5% simple interest, how much interest will ₹2,000 earn in 3 years?
A. ₹200
B. ₹250
C. ₹300
D. ₹350
View Answer
SI = (2000 × 5 × 3) / 100 = ₹300.
Q33. A principal of ₹7,000 is invested at 4% per annum for 5 years. Find the interest.
A. ₹1,200
B. ₹1,300
C. ₹1,400
D. ₹1,500
View Answer
SI = (7000 × 4 × 5) / 100 = ₹1,400.
Q34. If the simple interest on ₹4,000 for 2 years is ₹640, find the rate.
A. 6%
B. 8%
C. 10%
D. 12%
View Answer
R = (640 × 100) / (4000 × 2) = 8%.
Q35. If ₹5,000 earns ₹750 simple interest at 5% per annum, find the time.
A. 2 years
B. 3 years
C. 4 years
D. 5 years
View Answer
T = (750 × 100) / (5000 × 5) = 3 years.
Q36. A sum amounts to ₹13,200 in 4 years at 10% simple interest. Find the principal.
A. ₹9,000
B. ₹9,250
C. ₹9,428.57
D. ₹10,000
View Answer
Amount = 140% of Principal.
P = 13200 × 100 / 140 = ₹9,428.57 approximately.
Q37. A sum becomes ₹9,600 in 2 years at 10% simple interest. Find the principal.
A. ₹7,500
B. ₹8,000
C. ₹8,500
D. ₹9,000
View Answer
Amount = 120% of principal.
P = 9600 / 1.2 = ₹8,000.
Q38. At what rate will ₹4,000 become ₹5,200 in 3 years at simple interest?
A. 8%
B. 9%
C. 10%
D. 12%
View Answer
SI = ₹1,200.
R = (1200 × 100) / (4000 × 3) = 10%.
Q39. A sum becomes ₹7,800 from ₹6,000 in 3 years. Find the simple interest rate.
A. 8%
B. 10%
C. 12%
D. 15%
View Answer
SI = 7800 − 6000 = ₹1800.
R = (1800 × 100) / (6000 × 3) = 10%.
Q40. If the simple interest on a sum for 5 years at 8% is ₹2,400, find the principal.
A. ₹5,000
B. ₹6,000
C. ₹7,000
D. ₹8,000
View Answer
P = (2400 × 100) / (8 × 5) = ₹6,000.
Q41. The simple interest on a certain sum for 4 years at 5% is ₹800. Find the principal.
A. ₹3,000
B. ₹4,000
C. ₹5,000
D. ₹6,000
View Answer
P = (800 × 100) / (5 × 4) = ₹4,000.
Q42. What amount will ₹2,500 become in 4 years at 6% simple interest?
A. ₹2,900
B. ₹3,000
C. ₹3,100
D. ₹3,200
View Answer
SI = (2500 × 6 × 4) / 100 = ₹600.
Amount = ₹3,100.
Q43. What is the simple interest on ₹18,000 at 7% per annum for 2 years?
A. ₹2,120
B. ₹2,320
C. ₹2,520
D. ₹2,720
View Answer
SI = (18000 × 7 × 2) / 100 = ₹2,520.
Q44. Find the amount on ₹18,000 at 7% simple interest for 2 years.
A. ₹20,120
B. ₹20,520
C. ₹21,000
D. ₹21,520
View Answer
SI = ₹2,520.
Amount = ₹18,000 + ₹2,520 = ₹20,520.
Q45. A sum of ₹10,000 is invested at 7.5% per annum for 2 years. Find the simple interest.
A. ₹1,250
B. ₹1,500
C. ₹1,750
D. ₹2,000
View Answer
SI = (10000 × 7.5 × 2) / 100 = ₹1,500.
Q46. What is the simple interest on ₹6,400 at 12.5% per annum for 2 years?
A. ₹1,400
B. ₹1,500
C. ₹1,600
D. ₹1,800
View Answer
SI = (6400 × 12.5 × 2) / 100 = ₹1,600.
Q47. A sum of ₹2,000 is invested at 2.5% per annum for 4 years. Find the simple interest.
A. ₹150
B. ₹200
C. ₹250
D. ₹300
View Answer
SI = (2000 × 2.5 × 4) / 100 = ₹200.
Q48. A sum of ₹9,600 is invested at 12.5% per annum for 2 years. Find the interest.
A. ₹2,000
B. ₹2,200
C. ₹2,400
D. ₹2,600
View Answer
SI = (9600 × 12.5 × 2) / 100 = ₹2,400.
Q49. If the rate of interest is 8% per annum, what percentage of the principal is the simple interest after 5 years?
A. 20%
B. 30%
C. 40%
D. 50%
View Answer
SI as a percentage of principal = R × T = 8 × 5 = 40%.
Q50. At 12% simple interest per annum, in how many years will the interest equal 60% of the principal?
A. 3 years
B. 4 years
C. 5 years
D. 6 years
View Answer
R × T = 60.
12 × T = 60, so T = 5 years.
Q51. At 10% simple interest per annum, in how many years will the interest equal the principal?
A. 5 years
B. 8 years
C. 10 years
D. 12 years
View Answer
For SI to equal principal, RT/100 = 1.
Therefore, T = 100/10 = 10 years.
Q52. At 5% simple interest per annum, in how many years will the interest equal half of the principal?
A. 5 years
B. 8 years
C. 10 years
D. 12 years
View Answer
5 × T = 50, so T = 10 years.
Q53. At 20% simple interest per annum, what will be the interest on ₹5,000 in 3 years?
A. ₹2,000
B. ₹2,500
C. ₹3,000
D. ₹3,500
View Answer
SI = (5000 × 20 × 3) / 100 = ₹3,000.
Q54. A sum of ₹4,000 is invested at 15% per annum for 2 years. What is the amount?
A. ₹5,000
B. ₹5,200
C. ₹5,400
D. ₹5,600
View Answer
SI = ₹1,200.
Amount = ₹5,200.
Q55. What is the simple interest on ₹7,500 at 4% per annum for 6 years?
A. ₹1,500
B. ₹1,600
C. ₹1,800
D. ₹2,000
View Answer
SI = (7500 × 4 × 6) / 100 = ₹1,800.
Q56. A sum of ₹6,500 is invested at 8% per annum for 5 years. Find the amount.
A. ₹8,500
B. ₹9,000
C. ₹9,100
D. ₹9,500
View Answer
SI = (6500 × 8 × 5) / 100 = ₹2,600.
Amount = ₹9,100.
Q57. The simple interest on a sum at 9% per annum for 4 years is ₹1,440. Find the principal.
A. ₹3,500
B. ₹4,000
C. ₹4,500
D. ₹5,000
View Answer
P = (1440 × 100) / (9 × 4) = ₹4,000.
Q58. A sum of ₹3,500 amounts to ₹4,200 in 4 years. Find the rate of simple interest.
A. 4%
B. 5%
C. 6%
D. 7%
View Answer
SI = ₹4,200 − ₹3,500 = ₹700.
R = (700 × 100) / (3500 × 4) = 5%.
Q59. A sum of ₹7,000 amounts to ₹8,400 in 4 years. Find the rate.
A. 4%
B. 5%
C. 6%
D. 7%
View Answer
SI = ₹1,400.
R = (1400 × 100) / (7000 × 4) = 5%.
Q60. A sum of ₹5,000 amounts to ₹6,500 in 5 years. Find the rate.
A. 4%
B. 5%
C. 6%
D. 7%
View Answer
SI = ₹1,500.
R = (1500 × 100) / (5000 × 5) = 6%.
Q61. If the simple interest on ₹8,000 for 3 years is ₹1,440, what is the rate?
A. 4%
B. 5%
C. 6%
D. 8%
View Answer
R = (1440 × 100) / (8000 × 3) = 6%.
Q62. If ₹9,000 earns ₹2,700 simple interest at 10% per annum, find the time.
A. 2 years
B. 3 years
C. 4 years
D. 5 years
View Answer
T = (2700 × 100) / (9000 × 10) = 3 years.
Q63. If ₹12,000 earns ₹3,600 simple interest at 10% per annum, find the time.
A. 2 years
B. 3 years
C. 4 years
D. 5 years
View Answer
T = (3600 × 100) / (12000 × 10) = 3 years.
Q64. A sum of ₹10,000 earns ₹2,500 simple interest in 5 years. Find the rate.
A. 4%
B. 5%
C. 6%
D. 7%
View Answer
R = (2500 × 100) / (10000 × 5) = 5%.
Q65. If the simple interest is ₹900 on ₹5,000 for 3 years, find the rate.
A. 4%
B. 5%
C. 6%
D. 7%
View Answer
R = (900 × 100) / (5000 × 3) = 6%.
Q66. A sum of ₹2,500 earns ₹750 simple interest in 5 years. Find the rate.
A. 4%
B. 5%
C. 6%
D. 8%
View Answer
R = (750 × 100) / (2500 × 5) = 6%.
Q67. The simple interest on a sum for 2 years at 12% is ₹960. Find the principal.
A. ₹3,000
B. ₹4,000
C. ₹5,000
D. ₹6,000
View Answer
P = (960 × 100) / (12 × 2) = ₹4,000.
Q68. A sum of ₹5,000 is invested for 2 years at 8%. What is the amount?
A. ₹5,600
B. ₹5,700
C. ₹5,800
D. ₹6,000
View Answer
SI = (5000 × 8 × 2) / 100 = ₹800.
Amount = ₹5,800.
Q69. What is the simple interest on ₹4,800 at 5% per annum for 3 years?
A. ₹620
B. ₹720
C. ₹820
D. ₹920
View Answer
SI = (4800 × 5 × 3) / 100 = ₹720.
Q70. A sum of ₹7,200 is invested at 10% per annum for 2 years. Find the amount.
A. ₹8,400
B. ₹8,640
C. ₹8,800
D. ₹9,000
View Answer
SI = ₹1,440.
Amount = ₹8,640.
Q71. The simple interest on a sum is ₹1,200 at 8% per annum for 3 years. Find the principal.
A. ₹4,000
B. ₹5,000
C. ₹6,000
D. ₹7,000
View Answer
P = (1200 × 100) / (8 × 3) = ₹5,000.
Q72. If the principal is doubled while rate and time remain unchanged, the simple interest will:
A. Remain the same
B. Become half
C. Become double
D. Become four times
View Answer
Simple interest is directly proportional to the principal.
Q73. If the rate of interest is doubled while principal and time remain unchanged, the simple interest will:
A. Remain the same
B. Become half
C. Become double
D. Become four times
View Answer
Simple interest is directly proportional to the rate of interest.
Q74. If the time is doubled while principal and rate remain unchanged, the simple interest will:
A. Become half
B. Remain the same
C. Become double
D. Become four times
View Answer
Simple interest is directly proportional to time.
Q75. If both principal and rate are doubled, while time remains unchanged, the simple interest becomes:
A. Double
B. Triple
C. Four times
D. Eight times
View Answer
SI is proportional to P × R. Doubling both makes the interest 2 × 2 = 4 times.
Q76. If principal is halved while rate and time remain unchanged, the simple interest becomes:
A. Half
B. Double
C. One-fourth
D. Unchanged
View Answer
Simple interest is directly proportional to principal.
Q77. If the rate is reduced from 10% to 5%, with principal and time unchanged, the simple interest becomes:
A. Double
B. Half
C. One-fourth
D. Unchanged
View Answer
The rate is reduced by half, so the simple interest is also reduced by half.
Q78. If the time is reduced from 6 years to 3 years, with principal and rate unchanged, the simple interest becomes:
A. Double
B. Half
C. Four times
D. Unchanged
View Answer
Simple interest is directly proportional to time.
Q79. A sum earns ₹1,000 as simple interest in 2 years. How much interest will it earn in 5 years at the same rate?
A. ₹2,000
B. ₹2,250
C. ₹2,500
D. ₹3,000
View Answer
Interest is proportional to time.
₹1,000 × 5/2 = ₹2,500.
Q80. A sum earns ₹600 interest in 3 years. How much will it earn in 7 years at the same rate?
A. ₹1,000
B. ₹1,200
C. ₹1,400
D. ₹1,600
View Answer
₹600 × 7/3 = ₹1,400.
Q81. A sum of ₹10,000 is divided into two parts in the ratio 3:2. What is the larger part?
A. ₹4,000
B. ₹5,000
C. ₹6,000
D. ₹7,000
View Answer
Total parts = 5.
Larger part = 10000 × 3/5 = ₹6,000.
Q82. ₹6,000 is invested at 10% and ₹4,000 at 5% simple interest for the same time. Which earns more interest?
A. ₹6,000 investment
B. ₹4,000 investment
C. Both earn equal interest
D. Cannot be determined
View Answer
For the same time, compare P × R.
6000 × 10 = 60,000, while 4000 × 5 = 20,000. Therefore, the ₹6,000 investment earns more.
Q83. A sum of ₹5,000 is invested at 8% and another ₹5,000 at 6% for 3 years. What is the difference in their simple interests?
A. ₹200
B. ₹250
C. ₹300
D. ₹350
View Answer
Difference = 5000 × (8 − 6) × 3 / 100 = ₹300.
Q84. The difference between simple interests on a sum at 8% and 5% per annum for 4 years is ₹600. Find the principal.
A. ₹4,000
B. ₹5,000
C. ₹6,000
D. ₹7,000
View Answer
Difference in rate = 3%.
600 = P × 3 × 4 / 100.
P = ₹5,000.
Q85. The difference between simple interests on ₹8,000 at 7% and 5% for 3 years is:
A. ₹360
B. ₹420
C. ₹480
D. ₹520
View Answer
Difference = 8000 × 2 × 3 / 100 = ₹480.
Q86. A sum is invested at 6% simple interest for 5 years. If the principal is ₹4,000, find the amount.
A. ₹4,800
B. ₹5,000
C. ₹5,200
D. ₹5,400
View Answer
SI = ₹1,200.
Amount = ₹5,200.
Q87. A sum becomes 125% of itself in 5 years at simple interest. What is the rate?
A. 4%
B. 5%
C. 6%
D. 8%
View Answer
Interest = 25% of principal.
R × 5 = 25, so R = 5%.
Q88. A sum becomes 140% of itself in 8 years at simple interest. Find the rate.
A. 4%
B. 5%
C. 6%
D. 7%
View Answer
Interest = 40% of principal.
R × 8 = 40, so R = 5%.
Q89. A sum becomes 150% of itself in 10 years at simple interest. Find the rate.
A. 4%
B. 5%
C. 6%
D. 8%
View Answer
Interest = 50% of principal.
R × 10 = 50, so R = 5%.
Q90. A sum becomes 120% of itself in 4 years at simple interest. Find the rate.
A. 4%
B. 5%
C. 6%
D. 8%
View Answer
Interest = 20% of principal.
R × 4 = 20, so R = 5%.
Q91. If a sum doubles itself in 8 years at simple interest, what is the rate?
A. 10%
B. 12.5%
C. 15%
D. 20%
View Answer
Interest = 100% of principal.
R = 100/8 = 12.5%.
Q92. If a sum doubles itself in 10 years at simple interest, how long will it take to become three times?
A. 15 years
B. 18 years
C. 20 years
D. 25 years
View Answer
Doubling means interest = 100% in 10 years. To earn 200% interest, the time required is 20 years.
Q93. If a sum becomes double in 5 years at simple interest, in how many years will it become triple?
A. 7.5 years
B. 8 years
C. 10 years
D. 12 years
View Answer
100% interest takes 5 years. Therefore, 200% interest takes 10 years.
Q94. A sum becomes ₹7,500 from ₹6,000 in 5 years. Find the simple interest rate.
A. 4%
B. 5%
C. 6%
D. 7%
View Answer
SI = ₹1,500.
R = (1500 × 100) / (6000 × 5) = 5%.
Q95. A sum of ₹4,000 becomes ₹4,800 in 4 years. Find the rate of simple interest.
A. 4%
B. 5%
C. 6%
D. 8%
View Answer
SI = ₹800.
R = (800 × 100) / (4000 × 4) = 5%.
Q96. A sum of ₹8,000 becomes ₹9,600 in 4 years. Find the rate of simple interest.
A. 4%
B. 5%
C. 6%
D. 8%
View Answer
SI = ₹1,600.
R = (1600 × 100) / (8000 × 4) = 5%.
Q97. A person borrows ₹10,000 at 6% simple interest per annum. How much must he repay after 3 years?
A. ₹11,200
B. ₹11,500
C. ₹11,800
D. ₹12,000
View Answer
SI = (10000 × 6 × 3) / 100 = ₹1,800.
Repayment = ₹11,800.
Q98. A person borrows ₹15,000 at 8% simple interest per annum for 2 years. Find the total repayment.
A. ₹16,800
B. ₹17,000
C. ₹17,400
D. ₹18,000
View Answer
SI = (15000 × 8 × 2) / 100 = ₹2,400.
Total repayment = ₹17,400.
Q99. A sum of ₹20,000 is lent at 5% simple interest per annum. What will be the interest for 9 months?
A. ₹600
B. ₹700
C. ₹750
D. ₹800
View Answer
9 months = 3/4 year.
SI = (20000 × 5 × 3/4) / 100 = ₹750.
Q100. A sum of ₹12,000 is invested at 10% simple interest per annum. What will be the amount after 3 years and 6 months?
A. ₹15,600
B. ₹16,000
C. ₹16,200
D. ₹16,500
View Answer
3 years 6 months = 3.5 years.
SI = (12000 × 10 × 3.5) / 100 = ₹4,200.
Amount = ₹12,000 + ₹4,200 = ₹16,200.
These 100 Simple Interest Questions with Answers provide comprehensive practice for students preparing for SSC, Railway, Banking, Defence, Police and other competitive examinations. The questions cover important concepts such as principal, rate of interest, time, simple interest, amount, months and years, percentage-based problems and comparison questions.
To improve your performance, first try to solve each question without looking at the solution and then use the View Answer section to check your calculation and understand the method. Pay special attention to converting months into years and applying the Simple Interest formula correctly.
Regular practice of Simple Interest questions can help improve calculation speed, accuracy and confidence. Once you are comfortable with these problems, move on to related topics such as Compound Interest, Profit and Loss, Percentage, Ratio and Proportion and other important quantitative aptitude topics.
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