Simple Interest in Aptitude MCQ Questions and Answers

Q1. A sum of ₹12,000 amounts to ₹16,800 in 3 years at simple interest. The rate of interest per annum is:
A) 10%
B) 12%
C) 14%
D) 15%
Answer: B) 12%

Q2. A principal amount doubles itself in 8 years at simple interest. The rate of interest per annum is:
A) 12.5%
B) 10%
C) 15%
D) 8%
Answer: A) 12.5%

Q3. A sum of ₹20,000 is lent at simple interest. The interest for 3 years is equal to the interest for 4 years on ₹15,000. The rate of interest per annum is:
A) 10%
B) 12%
C) 15%
D) 20%
Answer: C) 15%

Q4. The simple interest on a sum for 3 years at 8% per annum is ₹2,400. The principal is:
A) ₹8,000
B) ₹9,000
C) ₹10,000
D) ₹12,000
Answer: C) ₹10,000

Q5. A sum of ₹25,000 is lent at simple interest. If the SI for 2 years is ₹5,000, then the rate of interest per annum is:
A) 8%
B) 10%
C) 12%
D) 15%
Answer: B) 10%

Q6. A sum of money becomes three times in 12 years at simple interest. The rate of interest per annum is:
A) 20%
B) 25%
C) 30%
D) 15%
Answer: A) 20%

Q7. The simple interest on a certain sum is ₹1,200 for 4 years at 5% per annum. The sum is:
A) ₹5,000
B) ₹6,000
C) ₹7,000
D) ₹8,000
Answer: B) ₹6,000

Q8. A sum of ₹18,000 is lent at simple interest. If the interest for 3 years is ₹3,240, the rate of interest per annum is:
A) 6%
B) 7%
C) 8%
D) 10%
Answer: A) 6%

Q9. A sum of ₹10,000 at simple interest amounts to ₹11,500 in 2 years. The rate of interest per annum is:
A) 5%
B) 7.5%
C) 10%
D) 12.5%
Answer: B) 7.5%

Q10. The simple interest on a sum of ₹8,000 at 12% per annum for 3.5 years is:
A) ₹3,360
B) ₹3,400
C) ₹3,240
D) ₹3,500
Answer: A) ₹3,360

Q11. A man borrows ₹40,000 at 8% per annum simple interest. What is the amount he must pay after 2 years and 6 months?
A) ₹44,000
B) ₹44,800
C) ₹45,000
D) ₹45,200
Answer: B) ₹44,800

Q12. A sum of money lent at simple interest amounts to ₹16,400 in 3 years and ₹17,600 in 4 years. The principal is:
A) ₹15,200
B) ₹14,800
C) ₹13,600
D) ₹12,800
Answer: C) ₹13,600

Q13. The simple interest on a sum for 5 years at 8% per annum is ₹4,000. The principal is:
A) ₹8,000
B) ₹9,000
C) ₹10,000
D) ₹12,000
Answer: C) ₹10,000

Q14. A sum of ₹15,000 at simple interest amounts to ₹18,750 in 5 years. The rate of interest per annum is:
A) 7.5%
B) 8%
C) 9%
D) 5%
Answer: D) 5%

Q15. The simple interest on a sum of money for 2 years is twice the simple interest on the same sum for 1 year at the same rate. If the SI for 2 years is ₹800, the sum is:
A) ₹4,000
B) ₹5,000
C) ₹8,000
D) ₹10,000
Answer: C) ₹8,000

Q16. A sum of money at simple interest amounts to ₹1,800 in 2 years and ₹2,100 in 3 years. The rate of interest per annum is:
A) 12%
B) 15%
C) 10%
D) 20%
Answer: B) 15%

Q17. A sum of money lent at simple interest amounts to ₹12,000 in 2 years and ₹13,500 in 5 years. The principal is:
A) ₹8,500
B) ₹9,000
C) ₹9,500
D) ₹10,000
Answer: D) ₹10,000

Q18. A sum of money is lent at 8% per annum simple interest. It amounts to ₹1,800 in 2 years. The principal is:
A) ₹1,500
B) ₹1,600
C) ₹1,650
D) ₹1,700
Answer: A) ₹1,500

Q19. A sum of money doubles itself in 5 years at simple interest. The rate of interest per annum is:
A) 15%
B) 18%
C) 20%
D) 25%
Answer: C) 20%

Q20. A sum of ₹12,000 is invested at simple interest. The SI for 2 years is equal to 25% of the principal. The rate of interest per annum is:
A) 10%
B) 12.5%
C) 15%
D) 20%
Answer: B) 12.5%

Q21. A sum of ₹25,000 lent at simple interest amounts to ₹31,250 in 5 years. The rate of interest per annum is:
A) 5%
B) 6%
C) 7%
D) 8%
Answer: A) 5%

Q22. A sum of money amounts to ₹14,000 in 3 years and ₹15,200 in 4 years at simple interest. The principal is:
A) ₹11,800
B) ₹11,600
C) ₹11,400
D) ₹11,200
Answer: D) ₹11,200

Q23. The simple interest on ₹15,000 for 2 years is equal to the simple interest on ₹12,000 for 3 years. The rate of interest per annum is:
A) 12%
B) 10%
C) 8%
D) 15%
Answer: B) 10%

Q24. A sum of ₹8,000 amounts to ₹9,200 in 2 years at simple interest. The rate of interest per annum is:
A) 6%
B) 7%
C) 8%
D) 9%
Answer: C) 8%

Q25. The simple interest on a sum of ₹10,000 for 4 years is ₹2,400. The rate of interest per annum is:
A) 5%
B) 6%
C) 7%
D) 8%
Answer: B) 6%

Q26. A sum of money becomes four times in 15 years at simple interest. The rate of interest per annum is:
A) 15%
B) 18%
C) 20%
D) 25%
Answer: C) 20%

Q27. The simple interest on a sum for 2 years at 12% per annum is ₹2,400. The sum is:
A) ₹10,000
B) ₹9,000
C) ₹8,000
D) ₹7,500
Answer: A) ₹10,000

Q28. A sum lent at simple interest becomes ₹14,000 in 3 years and ₹16,000 in 5 years. The principal is:
A) ₹12,000
B) ₹11,000
C) ₹10,000
D) ₹9,000
Answer: C) ₹10,000

Q29. A man lends a sum at simple interest. He earns ₹1,500 in the first year, ₹1,800 in the second year, and ₹2,100 in the third year. The rate of interest per annum is:
A) 10%
B) 15%
C) 20%
D) 25%
Answer: B) 15%

Q30. The simple interest on a sum of money for 3 years is ₹4,500. If the same sum is lent at the same rate for 7 years, the interest will be:
A) ₹9,000
B) ₹10,000
C) ₹10,500
D) ₹11,000
Answer: C) ₹10,500

Q31. A sum of ₹15,000 at simple interest amounts to ₹19,500 in 5 years. The rate of interest per annum is:
A) 6%
B) 8%
C) 10%
D) 12%
Answer: C) 10%

Q32. A sum of money is lent at simple interest. The SI for 6 years is ₹4,500. If the rate of interest is 10% per annum, the sum is:
A) ₹7,000
B) ₹7,500
C) ₹8,000
D) ₹8,500
Answer: B) ₹7,500

Q33. A sum of money lent at simple interest amounts to ₹17,000 in 2 years and ₹18,500 in 3 years. The principal is:
A) ₹15,000
B) ₹15,500
C) ₹16,000
D) ₹16,500
Answer: C) ₹16,000

Q34. The simple interest on a sum of money for 5 years at 8% per annum is ₹4,000. The principal is:
A) ₹8,000
B) ₹9,000
C) ₹10,000
D) ₹12,500
Answer: C) ₹10,000

Q35. A sum of ₹18,000 amounts to ₹21,600 in 3 years. The rate of interest per annum is:
A) 5%
B) 6.67%
C) 7%
D) 8%
Answer: B) 6.67%

Q36. A man borrows ₹50,000 at simple interest. He pays back ₹60,000 after 5 years. The rate of interest per annum is:
A) 8%
B) 10%
C) 12%
D) 15%
Answer: B) 10%

Q37. The simple interest on a sum of money for 4 years at 5% per annum is ₹2,000. The sum is:
A) ₹8,000
B) ₹10,000
C) ₹12,000
D) ₹15,000
Answer: B) ₹10,000

Q38. A sum of money lent at simple interest amounts to ₹12,600 in 2 years and ₹15,600 in 5 years. The principal is:
A) ₹9,000
B) ₹10,000
C) ₹10,500
D) ₹11,000
Answer: B) ₹10,000

Q39. The SI on ₹20,000 for 2 years at 6% per annum is:
A) ₹2,200
B) ₹2,400
C) ₹2,600
D) ₹2,800
Answer: B) ₹2,400

Q40. A sum of money amounts to ₹14,500 in 2 years and ₹17,000 in 5 years at simple interest. The rate of interest per annum is:
A) 5%
B) 6%
C) 7%
D) 8%
Answer: B) 6%

Q41. A sum lent at simple interest amounts to ₹12,000 in 3 years and ₹14,000 in 5 years. The principal is:
A) ₹9,000
B) ₹10,000
C) ₹10,500
D) ₹11,000
Answer: B) ₹10,000

Q42. A sum of money at simple interest amounts to ₹10,500 in 1.5 years at 7% per annum. The principal is:
A) ₹9,900
B) ₹9,950
C) ₹10,000
D) ₹10,050
Answer: C) ₹10,000

Q43. A man borrows a sum of ₹25,000 at simple interest and pays ₹30,000 after 4 years. The rate of interest per annum is:
A) 4%
B) 5%
C) 6%
D) 7%
Answer: B) 5%

Q44. A sum becomes 1.5 times of itself in 3 years at simple interest. The rate of interest per annum is:
A) 12%
B) 15%
C) 18%
D) 20%
Answer: B) 15%

Q45. The SI on a sum of money for 8 months at 15% per annum is ₹600. The principal is:
A) ₹5,000
B) ₹6,000
C) ₹6,500
D) ₹7,000
Answer: B) ₹6,000

Q46. A sum of ₹18,000 at simple interest amounts to ₹21,600 in 3 years. The rate of interest per annum is:
A) 6.67%
B) 7%
C) 8%
D) 9%
Answer: A) 6.67%

Q47. A sum of money at 10% per annum SI amounts to ₹16,500 in 3 years. The principal is:
A) ₹12,500
B) ₹13,000
C) ₹13,500
D) ₹14,000
Answer: B) ₹13,000

Q48. A sum of ₹12,000 amounts to ₹15,000 in 4 years. The rate of interest per annum is:
A) 5%
B) 6.25%
C) 7%
D) 8%
Answer: B) 6.25%

Q49. A sum of ₹8,000 is lent at SI. If SI for 3 years is ₹1,440, the rate of interest per annum is:
A) 5%
B) 6%
C) 7%
D) 8%
Answer: B) 6%

Q50. A sum of money at simple interest becomes ₹21,000 in 2.5 years at 8% per annum. The principal is:
A) ₹18,000
B) ₹19,000
C) ₹20,000
D) ₹20,500
Answer: C) ₹20,000

Q51. A sum of ₹10,000 amounts to ₹13,000 in 4 years at simple interest. The rate of interest per annum is:
A) 5%
B) 7.5%
C) 8%
D) 10%
Answer: B) 7.5%

Q52. The SI on a sum for 3 years at 12% per annum is ₹1,800. The sum is:
A) ₹4,500
B) ₹5,000
C) ₹5,500
D) ₹6,000
Answer: D) ₹5,000

Q53. A man borrows ₹50,000 at simple interest. He pays ₹58,000 after 2 years. The rate of interest per annum is:
A) 7%
B) 8%
C) 9%
D) 10%
Answer: B) 8%

Q54. A sum of money amounts to ₹15,000 in 3 years and ₹18,000 in 5 years. The principal is:
A) ₹10,500
B) ₹11,000
C) ₹12,000
D) ₹12,500
Answer: C) ₹12,000

Q55. A sum of ₹25,000 is lent at simple interest. If the SI for 2.5 years is ₹7,500, the rate of interest per annum is:
A) 8%
B) 10%
C) 12%
D) 15%
Answer: C) 12%

Q56. A sum of money lent at simple interest amounts to ₹14,000 in 2 years and ₹17,000 in 5 years. The rate of interest per annum is:
A) 10%
B) 12%
C) 15%
D) 20%
Answer: C) 15%

Q57. A sum of ₹20,000 lent at simple interest amounts to ₹28,000 in 4 years. The rate of interest per annum is:
A) 8%
B) 9%
C) 10%
D) 12%
Answer: C) 10%

Q58. A sum lent at 5% per annum SI amounts to ₹16,000 in 2 years. The principal is:
A) ₹14,500
B) ₹14,800
C) ₹15,000
D) ₹15,500
Answer: C) ₹15,000

Q59. A sum of money at simple interest amounts to ₹19,000 in 3 years and ₹25,000 in 6 years. The principal is:
A) ₹10,000
B) ₹12,000
C) ₹13,000
D) ₹14,000
Answer: B) ₹12,000

Q60. The simple interest on a sum for 5 years at 8% per annum is ₹4,000. The sum is:
A) ₹9,500
B) ₹10,000
C) ₹10,500
D) ₹12,000
Answer: B) ₹10,000

Q61. A sum lent at simple interest earns ₹2,500 in the first year, ₹3,000 in the second year, and ₹3,500 in the third year. The principal is:
A) ₹10,000
B) ₹12,500
C) ₹15,000
D) ₹17,500
Answer: C) ₹15,000

Q62. A sum of ₹15,000 amounts to ₹18,750 in 5 years at simple interest. The rate of interest per annum is:
A) 5%
B) 6%
C) 7%
D) 7.5%
Answer: A) 5%

Q63. A man borrows ₹30,000 at 6% per annum SI. He pays ₹33,600 after 2 years. The difference is:
A) ₹2,600
B) ₹3,000
C) ₹3,600
D) ₹3,400
Answer: C) ₹3,600

Q64. A sum of money becomes 2.5 times in 10 years at simple interest. The rate of interest per annum is:
A) 10%
B) 12.5%
C) 15%
D) 20%
Answer: B) 12.5%

Q65. A sum of money at simple interest amounts to ₹14,400 in 4 years and ₹17,400 in 7 years. The principal is:
A) ₹10,500
B) ₹11,000
C) ₹12,000
D) ₹12,500
Answer: C) ₹12,000

Q66. The SI on a sum of money for 9 months at 10% per annum is ₹1,500. The principal is:
A) ₹18,000
B) ₹20,000
C) ₹22,000
D) ₹25,000
Answer: B) ₹20,000

Q67. A sum of ₹16,000 lent at simple interest amounts to ₹19,200 in 3 years. The rate of interest per annum is:
A) 6%
B) 7%
C) 8%
D) 9%
Answer: C) 8%

Q68. A sum of ₹12,000 at simple interest amounts to ₹15,600 in 4 years. The rate of interest per annum is:
A) 6%
B) 7%
C) 8%
D) 9%
Answer: C) 8%

Q69. A sum lent at 12% per annum SI amounts to ₹28,000 in 2 years. The principal is:
A) ₹25,000
B) ₹24,000
C) ₹23,500
D) ₹22,500
Answer: B) ₹24,000

Q70. The simple interest on ₹18,000 for 4 years at 5% per annum is:
A) ₹3,200
B) ₹3,400
C) ₹3,600
D) ₹3,800
Answer: C) ₹3,600

Q71. A sum of ₹15,000 amounts to ₹18,750 in 5 years. The rate of interest per annum is:
A) 5%
B) 6%
C) 7%
D) 7.5%
Answer: A) 5%

Q72. A sum becomes three times itself in 12 years at simple interest. The rate of interest per annum is:
A) 20%
B) 22%
C) 25%
D) 30%
Answer: A) 20%

Q73. A sum of ₹14,000 at simple interest amounts to ₹18,200 in 5 years. The rate of interest per annum is:
A) 5%
B) 6.29%
C) 7%
D) 8%
Answer: B) 6.29%

Q74. A sum of money lent at simple interest amounts to ₹16,800 in 3 years and ₹19,200 in 5 years. The principal is:
A) ₹12,000
B) ₹12,500
C) ₹13,000
D) ₹13,500
Answer: A) ₹12,000

Q75. A sum of ₹18,000 at simple interest amounts to ₹20,700 in 3 years. The rate of interest per annum is:
A) 4%
B) 5%
C) 6%
D) 7%
Answer: B) 5.83%

Q76. A sum of ₹20,000 amounts to ₹25,000 in 5 years at simple interest. The rate of interest per annum is:
A) 4%
B) 5%
C) 6%
D) 7%
Answer: B) 5%

Q77. A sum lent at simple interest amounts to ₹16,000 in 2 years and ₹19,000 in 5 years. The principal is:
A) ₹10,500
B) ₹11,000
C) ₹12,000
D) ₹12,500
Answer: C) ₹12,000

Q78. A sum of ₹15,000 lent at SI earns ₹2,250 in the first year. The rate of interest per annum is:
A) 12%
B) 13%
C) 14%
D) 15%
Answer: D) 15%

Q79. The simple interest on a sum of ₹18,000 for 6 months at 10% per annum is:
A) ₹800
B) ₹850
C) ₹900
D) ₹950
Answer: C) ₹900

Q80. A sum of money amounts to ₹21,500 in 3 years and ₹25,500 in 5 years. The principal is:
A) ₹14,500
B) ₹15,000
C) ₹16,000
D) ₹16,500
Answer: B) ₹15,000

Q81. A sum lent at simple interest amounts to ₹13,600 in 2 years and ₹15,400 in 3 years. The rate of interest per annum is:
A) 10%
B) 12%
C) 14%
D) 15%
Answer: B) 12%

Q82. A sum of ₹12,000 at SI amounts to ₹15,600 in 4 years. The rate of interest per annum is:
A) 7%
B) 8%
C) 9%
D) 10%
Answer: B) 8%

Q83. A man lends ₹25,000 at simple interest. After 3 years he receives ₹31,250. The rate of interest per annum is:
A) 7%
B) 8%
C) 10%
D) 12%
Answer: C) 10%

Q84. The simple interest on ₹30,000 for 1 year at 5% per annum is:
A) ₹1,400
B) ₹1,500
C) ₹1,600
D) ₹1,700
Answer: B) ₹1,500

Q85. A sum becomes 3 times of itself in 15 years at simple interest. The rate of interest per annum is:
A) 15%
B) 18%
C) 20%
D) 25%
Answer: C) 20%

Q86. A sum of ₹18,000 at simple interest amounts to ₹21,600 in 3 years. The rate of interest per annum is:
A) 5%
B) 6%
C) 7%
D) 8%
Answer: B) 6%

Q87. A sum lent at simple interest amounts to ₹12,600 in 2 years and ₹15,000 in 5 years. The principal is:
A) ₹10,000
B) ₹10,500
C) ₹11,000
D) ₹11,500
Answer: A) ₹10,000

Q88. The simple interest on a sum of money for 3 years at 7% per annum is ₹2,100. The sum is:
A) ₹9,000
B) ₹10,000
C) ₹10,500
D) ₹11,000
Answer: B) ₹10,000

Q89. A sum of ₹20,000 at simple interest amounts to ₹24,000 in 4 years. The rate of interest per annum is:
A) 4%
B) 5%
C) 6%
D) 7%
Answer: C) 5%

Q90. A sum of ₹10,000 lent at SI earns ₹4,000 in 4 years. The rate of interest per annum is:
A) 8%
B) 9%
C) 10%
D) 12%
Answer: C) 10%

Q91. The simple interest on ₹15,000 for 2.5 years at 6% per annum is:
A) ₹2,000
B) ₹2,100
C) ₹2,250
D) ₹2,500
Answer: C) ₹2,250

Q92. A sum becomes 2.5 times itself in 10 years at SI. The rate of interest per annum is:
A) 10%
B) 12%
C) 12.5%
D) 15%
Answer: C) 12.5%

Q93. A sum of ₹18,000 at simple interest amounts to ₹21,600 in 3 years. The interest earned in 1.5 years is:
A) ₹1,600
B) ₹1,800
C) ₹2,000
D) ₹2,200
Answer: B) ₹1,800

Q94. A sum lent at simple interest amounts to ₹14,500 in 2 years and ₹17,500 in 5 years. The principal is:
A) ₹10,000
B) ₹10,500
C) ₹11,000
D) ₹11,500
Answer: A) ₹10,000

Q95. A sum of money amounts to ₹15,600 in 3 years and ₹18,000 in 5 years at simple interest. The rate of interest per annum is:
A) 6%
B) 7%
C) 8%
D) 9%
Answer: B) 7%

Q96. The simple interest on a sum of money for 8 months at 9% per annum is ₹600. The principal is:
A) ₹10,000
B) ₹10,500
C) ₹11,000
D) ₹12,000
Answer: A) ₹10,000

Q97. A sum of ₹12,000 amounts to ₹14,400 in 3 years at SI. The rate of interest per annum is:
A) 5%
B) 6%
C) 7%
D) 8%
Answer: B) 6%

Q98. A sum lent at simple interest amounts to ₹16,000 in 3 years and ₹19,000 in 5 years. The principal is:
A) ₹10,500
B) ₹11,000
C) ₹12,000
D) ₹12,500
Answer: C) ₹12,000

Q99. A sum of ₹15,000 at simple interest amounts to ₹18,750 in 5 years. The rate of interest per annum is:
A) 5%
B) 6%
C) 7%
D) 7.5%
Answer: A) 5%

Q100. The simple interest on ₹20,000 for 3.5 years at 8% per annum is:
A) ₹5,400
B) ₹5,600
C) ₹5,800
D) ₹6,000
Answer: B) ₹5,600