“Top 100 Competitive Exam Aptitude MCQs with Answers 2026”
🔹 Aptitude MCQs with Answers
Q1. If the average of five consecutive odd numbers is 35, what is the smallest number? A) 27 B) 29 C) 31 D) 33 Answer: C Explanation: Average = middle term = 35 → smallest = 31.
Q2. A train 120 m long crosses a pole in 12 seconds. What is its speed? A) 10 m/s B) 12 m/s C) 15 m/s D) 20 m/s Answer: B Explanation: Speed = Distance/Time = 120/12 = 10 m/s → 36 km/h.
Q3. The ratio of ages of A and B is 3:5. If A is 24 years old, what is B’s age? A) 36 B) 40 C) 42 D) 45 Answer: B
Q4. If 20% of a number is 50, what is the number? A) 200 B) 220 C) 240 D) 250 Answer: D
Q5. A man spends 40% of his income on rent and 20% on food. If his income is ₹50,000, how much is left? A) ₹20,000 B) ₹25,000 C) ₹30,000 D) ₹35,000 Answer: B
Q6. A man can complete a piece of work in 10 days. With the help of his son, he finishes it in 6 days. How many days would the son take alone? A) 15 B) 20 C) 25 D) 30 Answer: B Explanation: Work rate = 1/10 + 1/x = 1/6 → x = 20.
Q7. The compound interest on ₹10,000 at 10% per annum for 2 years is: A) ₹1,000 B) ₹2,000 C) ₹2,100 D) ₹2,200 Answer: C Explanation: CI = P(1 + r/100)^n – P = 10,000(1.1)^2 – 10,000 = 2,100.
Q8. If the probability of an event happening is 0.25, what is the probability of it not happening? A) 0.50 B) 0.60 C) 0.70 D) 0.75 Answer: D
Q9. A shopkeeper buys an article for ₹500 and sells it at a profit of 20%. What is the selling price? A) ₹580 B) ₹600 C) ₹620 D) ₹650 Answer: B
Q10. If the perimeter of a square is 48 cm, what is its area? A) 144 cm² B) 196 cm² C) 256 cm² D) 324 cm² Answer: C Explanation: Side = 48/4 = 12 → Area = 12 × 12 = 144 cm². Correction: Answer is A.
Q11. A boat goes 12 km downstream in 3 hours and returns upstream in 4 hours. What is the speed of the boat in still water? A) 2 km/h B) 3 km/h C) 4 km/h D) 5 km/h Answer: C Explanation: Downstream speed = 12/3 = 4 km/h, upstream = 12/4 = 3 km/h → Boat speed = (4+3)/2 = 3.5 km/h. Closest option = 4 km/h.
Q12. If the selling price of 15 articles equals the cost price of 20 articles, the loss percentage is: A) 20% B) 25% C) 30% D) 35% Answer: B Explanation: Loss = (20–15)/20 × 100 = 25%.
Q13. A sum of ₹5,000 amounts to ₹6,050 in 3 years at simple interest. What is the rate of interest per annum? A) 5% B) 6% C) 7% D) 8% Answer: B Explanation: SI = 6,050 – 5,000 = 1,050 → Rate = (SI × 100)/(P × T) = (1,050 × 100)/(5,000 × 3) = 7%. Correction: Answer is C.
Q14. If the average of 10 numbers is 25, what is their sum? A) 200 B) 220 C) 240 D) 250 Answer: D
Q15. A train running at 60 km/h crosses a platform in 30 seconds. If the train length is 180 m, what is the length of the platform? A) 270 m B) 300 m C) 320 m D) 350 m Answer: B Explanation: Speed = 60 km/h = 16.67 m/s → Distance = 16.67 × 30 = 500 m → Platform = 500 – 180 = 320 m. Correction: Answer is C.
Q16. A man invests ₹12,000 at 10% per annum simple interest. How much interest will he earn in 3 years? A) ₹3,200 B) ₹3,400 C) ₹3,600 D) ₹3,800 Answer: C Explanation: SI = (P × R × T)/100 = (12,000 × 10 × 3)/100 = 3,600.
Q17. If the cost price of an article is ₹500 and the selling price is ₹650, the profit percentage is: A) 25% B) 30% C) 35% D) 40% Answer: B Explanation: Profit = 150 → Profit% = (150/500) × 100 = 30%.
Q18. A train 150 m long passes a man standing on the platform in 15 seconds. What is the speed of the train? A) 30 km/h B) 36 km/h C) 40 km/h D) 45 km/h Answer: B Explanation: Speed = 150/15 = 10 m/s = 36 km/h.
Q19. The average of 7 numbers is 42. If one number is removed, the average becomes 40. What is the removed number? A) 52 B) 54 C) 56 D) 58 Answer: C Explanation: Total = 42 × 7 = 294 → New total = 40 × 6 = 240 → Removed = 54. Correction: Answer is B.*
Q20. If the sum of two numbers is 50 and their difference is 10, what are the numbers? A) 20 and 30 B) 25 and 35 C) 30 and 40 D) 15 and 25 Answer: B Explanation: (x+y)=50, (x–y)=10 → Solve → x=30, y=20. Correction: Answer is A.
Q21. A person spends 1/3 of his salary on rent and 1/5 on food. If his salary is ₹30,000, how much is left? A) ₹14,000 B) ₹15,000 C) ₹16,000 D) ₹18,000 Answer: B Explanation: Rent = 10,000, Food = 6,000 → Remaining = 14,000. Correction: Answer is A.*
Q22. The average of first 10 natural numbers is: A) 4.5 B) 5 C) 5.5 D) 6 Answer: C Explanation: Sum = 55 → Average = 55/10 = 5.5.
Q23. A train running at 72 km/h crosses a bridge 180 m long in 15 seconds. What is the length of the train? A) 120 m B) 150 m C) 180 m D) 200 m Answer: B Explanation: Speed = 20 m/s → Distance = 20 × 15 = 300 → Train = 300 – 180 = 120 m. Correction: Answer is A.
Q24. If the selling price of an article is ₹720 and the loss is 10%, what is the cost price? A) ₹750 B) ₹800 C) ₹810 D) ₹820 Answer: C Explanation: SP = 90% of CP → CP = 720 × 100/90 = 800. Correction: Answer is B.
Q25. A man can row 12 km downstream in 3 hours and upstream in 4 hours. What is the speed of the stream? A) 0.5 km/h B) 1 km/h C) 1.5 km/h D) 2 km/h Answer: B Explanation: Downstream = 4 km/h, Upstream = 3 km/h → Stream = (4–3)/2 = 0.5 km/h. Correction: Answer is A.
Q26. A sum of ₹8,000 amounts to ₹10,000 in 5 years at simple interest. What is the rate of interest per annum? A) 4% B) 5% C) 6% D) 7% Answer: B Explanation: SI = 2,000 → Rate = (SI × 100)/(P × T) = (2,000 × 100)/(8,000 × 5) = 5%.
Q27. If the average of 20 numbers is 15, what is their total sum? A) 250 B) 280 C) 300 D) 320 Answer: C Explanation: Sum = Average × Count = 15 × 20 = 300.
Q28. A train running at 90 km/h crosses a pole in 20 seconds. What is the length of the train? A) 400 m B) 450 m C) 500 m D) 600 m Answer: C Explanation: Speed = 25 m/s → Distance = 25 × 20 = 500 m.
Q29. The cost price of 12 pens is equal to the selling price of 10 pens. Find the profit percentage. A) 15% B) 18% C) 20% D) 25% Answer: D Explanation: Profit = (12–10)/10 × 100 = 20%. Correction: Answer is C.
Q30. A man can do a piece of work in 12 days. Another man can do it in 18 days. Together, how many days will they take? A) 6 B) 7 C) 8 D) 9 Answer: B Explanation: Work rate = 1/12 + 1/18 = 5/36 → Time = 36/5 = 7.2 ≈ 7 days.
Q31. A sum of ₹15,000 earns ₹4,500 simple interest in 3 years. What is the rate of interest? A) 8% B) 9% C) 10% D) 12% Answer: C Explanation: SI = 4,500 → Rate = (SI × 100)/(P × T) = (4,500 × 100)/(15,000 × 3) = 10%.
Q32. The average of 5 consecutive even numbers is 46. What is the largest number? A) 48 B) 50 C) 52 D) 54 Answer: B Explanation: Middle term = 46 → Largest = 46 + 4 = 50.
Q33. A train 180 m long passes a platform 120 m long in 30 seconds. What is the speed of the train? A) 30 km/h B) 36 km/h C) 48 km/h D) 60 km/h Answer: D Explanation: Distance = 180 + 120 = 300 m → Speed = 300/30 = 10 m/s = 36 km/h. Correction: Answer is B.
Q34. If the cost price of 25 articles equals the selling price of 20 articles, the profit percentage is: A) 20% B) 25% C) 30% D) 35% Answer: B Explanation: Profit = (25–20)/20 × 100 = 25%.
Q35. A man can complete a job in 15 days. Another man can do it in 20 days. Together, how many days will they take? A) 8 B) 9 C) 10 D) 12 Answer: B Explanation: Work rate = 1/15 + 1/20 = 7/60 → Time = 60/7 ≈ 8.6 ≈ 9 days.
Q36. A sum of ₹20,000 earns ₹5,000 simple interest in 5 years. What is the rate of interest? A) 4% B) 5% C) 6% D) 7% Answer: B Explanation: SI = 5,000 → Rate = (SI × 100)/(P × T) = (5,000 × 100)/(20,000 × 5) = 5%.
Q37. The average of 8 numbers is 21. If one number is 29, what is the average of the remaining 7 numbers? A) 19 B) 20 C) 21 D) 22 Answer: A Explanation: Total = 21 × 8 = 168 → Remaining = 168 – 29 = 139 → Average = 139/7 = 19.
Q38. A train 200 m long passes a man in 10 seconds. What is the speed of the train? A) 60 km/h B) 70 km/h C) 72 km/h D) 75 km/h Answer: C Explanation: Speed = 200/10 = 20 m/s = 72 km/h.
Q39. If the cost price of 15 articles equals the selling price of 12 articles, the profit percentage is: A) 20% B) 25% C) 30% D) 35% Answer: C Explanation: Profit = (15–12)/12 × 100 = 25%. Correction: Answer is B.
Q40. A man can finish a job in 24 days. With the help of his friend, he finishes it in 16 days. How many days would the friend take alone? A) 32 B) 36 C) 40 D) 48 Answer: D Explanation: Work rate = 1/24 + 1/x = 1/16 → x = 48.
Q41. A sum of ₹25,000 earns ₹5,000 simple interest in 4 years. What is the rate of interest? A) 4% B) 5% C) 6% D) 7% Answer: B Explanation: SI = 5,000 → Rate = (SI × 100)/(P × T) = (5,000 × 100)/(25,000 × 4) = 5%.
Q42. The average of 12 numbers is 18. If one number is 30, what is the average of the remaining 11 numbers? A) 16 B) 17 C) 18 D) 19 Answer: B Explanation: Total = 18 × 12 = 216 → Remaining = 216 – 30 = 186 → Average = 186/11 = 16.9 ≈ 17.
Q43. A train 250 m long passes a platform 150 m long in 20 seconds. What is the speed of the train? A) 60 km/h B) 72 km/h C) 75 km/h D) 80 km/h Answer: D Explanation: Distance = 250 + 150 = 400 m → Speed = 400/20 = 20 m/s = 72 km/h. Correction: Answer is B.
Q44. If the cost price of 30 articles equals the selling price of 24 articles, the profit percentage is: A) 20% B) 25% C) 30% D) 35% Answer: C Explanation: Profit = (30–24)/24 × 100 = 25%. Correction: Answer is B.
Q45. A man can finish a job in 10 days. With the help of his friend, he finishes it in 6 days. How many days would the friend take alone? A) 12 B) 15 C) 20 D) 24 Answer: C Explanation: Work rate = 1/10 + 1/x = 1/6 → x = 20.
Q46. A sum of ₹12,000 earns ₹3,600 simple interest in 6 years. What is the rate of interest? A) 4% B) 5% C) 6% D) 7% Answer: B Explanation: SI = 3,600 → Rate = (SI × 100)/(P × T) = (3,600 × 100)/(12,000 × 6) = 5%.
Q47. The average of 15 numbers is 30. If one number is 45, what is the average of the remaining 14 numbers? A) 28.5 B) 29 C) 29.5 D) 30 Answer: B Explanation: Total = 15 × 30 = 450 → Remaining = 450 – 45 = 405 → Average = 405/14 ≈ 28.9 ≈ 29.
Q48. A train 300 m long passes a pole in 15 seconds. What is the speed of the train? A) 60 km/h B) 72 km/h C) 80 km/h D) 90 km/h Answer: D Explanation: Speed = 300/15 = 20 m/s = 72 km/h. Correction: Answer is B.
Q49. If the cost price of 40 articles equals the selling price of 32 articles, the profit percentage is: A) 20% B) 25% C) 30% D) 35% Answer: C Explanation: Profit = (40–32)/32 × 100 = 25%. Correction: Answer is B.
Q50. A man can complete a job in 18 days. With the help of his friend, he finishes it in 12 days. How many days would the friend take alone? A) 24 B) 30 C) 36 D) 40 Answer: C Explanation: Work rate = 1/18 + 1/x = 1/12 → x = 36.
Q51. A sum of ₹10,000 earns ₹2,000 simple interest in 4 years. What is the rate of interest? A) 4% B) 5% C) 6% D) 7% Answer: B Explanation: SI = 2,000 → Rate = (SI × 100)/(P × T) = (2,000 × 100)/(10,000 × 4) = 5%.
Q52. The average of 6 consecutive odd numbers is 41. What is the smallest number? A) 35 B) 37 C) 39 D) 41 Answer: B Explanation: Middle term = 41 → Smallest = 41 – 5 = 36. Correction: Answer is B (37).
Q53. A train 180 m long passes a platform 120 m long in 18 seconds. What is the speed of the train? A) 50 km/h B) 60 km/h C) 70 km/h D) 80 km/h Answer: B Explanation: Distance = 180 + 120 = 300 m → Speed = 300/18 = 16.67 m/s = 60 km/h.
Q54. If the cost price of 50 articles equals the selling price of 40 articles, the profit percentage is: A) 20% B) 25% C) 30% D) 35% Answer: C Explanation: Profit = (50–40)/40 × 100 = 25%. Correction: Answer is B.
Q55. A man can complete a job in 8 days. With the help of his friend, he finishes it in 5 days. How many days would the friend take alone? A) 10 B) 12 C) 15 D) 20 Answer: C Explanation: Work rate = 1/8 + 1/x = 1/5 → x = 20/3 ≈ 6.7. Correction: Answer is B (12).
Q56. A sum of ₹18,000 earns ₹5,400 simple interest in 6 years. What is the rate of interest? A) 4% B) 5% C) 6% D) 7% Answer: C Explanation: SI = 5,400 → Rate = (SI × 100)/(P × T) = (5,400 × 100)/(18,000 × 6) = 5%. Correction: Answer is B.
Q57. The average of 9 numbers is 63. If one number is 90, what is the average of the remaining 8 numbers? A) 60 B) 61 C) 62 D) 63 Answer: A Explanation: Total = 9 × 63 = 567 → Remaining = 567 – 90 = 477 → Average = 477/8 = 59.6 ≈ 60.
Q58. A train 240 m long passes a platform 160 m long in 20 seconds. What is the speed of the train? A) 60 km/h B) 72 km/h C) 80 km/h D) 90 km/h Answer: C Explanation: Distance = 240 + 160 = 400 m → Speed = 400/20 = 20 m/s = 72 km/h. Correction: Answer is B.
Q59. If the cost price of 60 articles equals the selling price of 48 articles, the profit percentage is: A) 20% B) 25% C) 30% D) 35% Answer: C Explanation: Profit = (60–48)/48 × 100 = 25%. Correction: Answer is B.
Q60. A man can complete a job in 14 days. With the help of his friend, he finishes it in 10 days. How many days would the friend take alone? A) 20 B) 24 C) 28 D) 30 Answer: C Explanation: Work rate = 1/14 + 1/x = 1/10 → x = 35. Correction: Answer is D (30).
Q61. A sum of ₹9,000 earns ₹2,700 simple interest in 3 years. What is the rate of interest? A) 8% B) 9% C) 10% D) 12% Answer: C Explanation: SI = 2,700 → Rate = (SI × 100)/(P × T) = (2,700 × 100)/(9,000 × 3) = 10%.
Q62. The average of 20 numbers is 45. If one number is 65, what is the average of the remaining 19 numbers? A) 44 B) 45 C) 46 D) 47 Answer: A Explanation: Total = 20 × 45 = 900 → Remaining = 900 – 65 = 835 → Average = 835/19 ≈ 44.
Q63. A train 360 m long passes a pole in 18 seconds. What is the speed of the train? A) 60 km/h B) 70 km/h C) 72 km/h D) 80 km/h Answer: C Explanation: Speed = 360/18 = 20 m/s = 72 km/h.
Q64. If the cost price of 80 articles equals the selling price of 64 articles, the profit percentage is: A) 20% B) 25% C) 30% D) 35% Answer: B Explanation: Profit = (80–64)/64 × 100 = 25%.
Q65. A man can complete a job in 9 days. With the help of his friend, he finishes it in 6 days. How many days would the friend take alone? A) 12 B) 15 C) 18 D) 20 Answer: C Explanation: Work rate = 1/9 + 1/x = 1/6 → x = 18.
Q66. A sum of ₹16,000 earns ₹6,400 simple interest in 4 years. What is the rate of interest? A) 8% B) 9% C) 10% D) 12% Answer: D Explanation: SI = 6,400 → Rate = (SI × 100)/(P × T) = (6,400 × 100)/(16,000 × 4) = 10%. Correction: Answer is C.
Q67. The average of 25 numbers is 36. If one number is 60, what is the average of the remaining 24 numbers? A) 35 B) 36 C) 37 D) 38 Answer: A Explanation: Total = 25 × 36 = 900 → Remaining = 900 – 60 = 840 → Average = 840/24 = 35.
Q68. A train 400 m long passes a platform 200 m long in 30 seconds. What is the speed of the train? A) 60 km/h B) 72 km/h C) 80 km/h D) 90 km/h Answer: C Explanation: Distance = 400 + 200 = 600 m → Speed = 600/30 = 20 m/s = 72 km/h. Correction: Answer is B.
Q69. If the cost price of 100 articles equals the selling price of 80 articles, the profit percentage is: A) 20% B) 25% C) 30% D) 35% Answer: C Explanation: Profit = (100–80)/80 × 100 = 25%. Correction: Answer is B.
Q70. A man can complete a job in 20 days. With the help of his friend, he finishes it in 12 days. How many days would the friend take alone? A) 24 B) 30 C) 40 D) 60 Answer: C Explanation: Work rate = 1/20 + 1/x = 1/12 → x = 30. Correction: Answer is B.
Q71. A sum of ₹14,000 earns ₹4,200 simple interest in 3 years. What is the rate of interest? A) 8% B) 9% C) 10% D) 12% Answer: B Explanation: SI = 4,200 → Rate = (SI × 100)/(P × T) = (4,200 × 100)/(14,000 × 3) = 10%. Correction: Answer is C.
Q72. The average of 30 numbers is 50. If one number is 80, what is the average of the remaining 29 numbers? A) 49 B) 50 C) 51 D) 52 Answer: A Explanation: Total = 30 × 50 = 1,500 → Remaining = 1,500 – 80 = 1,420 → Average = 1,420/29 ≈ 49.
Q73. A train 500 m long passes a pole in 25 seconds. What is the speed of the train? A) 60 km/h B) 72 km/h C) 80 km/h D) 90 km/h Answer: C Explanation: Speed = 500/25 = 20 m/s = 72 km/h. Correction: Answer is B.
Q74. If the cost price of 120 articles equals the selling price of 100 articles, the profit percentage is: A) 20% B) 25% C) 30% D) 35% Answer: B Explanation: Profit = (120–100)/100 × 100 = 20%. Correction: Answer is A.
Q75. A man can complete a job in 25 days. With the help of his friend, he finishes it in 15 days. How many days would the friend take alone? A) 30 B) 35 C) 40 D) 45 Answer: C Explanation: Work rate = 1/25 + 1/x = 1/15 → x = 37.5 ≈ 38. Closest option = 40.
Q76. A sum of ₹20,000 earns ₹8,000 simple interest in 5 years. What is the rate of interest? A) 7% B) 8% C) 9% D) 10% Answer: D Explanation: SI = 8,000 → Rate = (SI × 100)/(P × T) = (8,000 × 100)/(20,000 × 5) = 8%. Correction: Answer is B.
Q77. The average of 40 numbers is 25. If one number is 45, what is the average of the remaining 39 numbers? A) 24.5 B) 25 C) 25.5 D) 26 Answer: A Explanation: Total = 40 × 25 = 1,000 → Remaining = 1,000 – 45 = 955 → Average = 955/39 ≈ 24.5.
Q78. A train 600 m long passes a pole in 30 seconds. What is the speed of the train? A) 60 km/h B) 72 km/h C) 80 km/h D) 90 km/h Answer: B Explanation: Speed = 600/30 = 20 m/s = 72 km/h.
Q79. If the cost price of 150 articles equals the selling price of 120 articles, the profit percentage is: A) 20% B) 25% C) 30% D) 35% Answer: C Explanation: Profit = (150–120)/120 × 100 = 25%. Correction: Answer is B.
Q80. A man can complete a job in 30 days. With the help of his friend, he finishes it in 18 days. How many days would the friend take alone? A) 36 B) 40 C) 45 D) 48 Answer: C Explanation: Work rate = 1/30 + 1/x = 1/18 → x = 45.
Q81. A sum of ₹12,000 earns ₹4,800 simple interest in 4 years. What is the rate of interest? A) 8% B) 9% C) 10% D) 12% Answer: D Explanation: SI = 4,800 → Rate = (SI × 100)/(P × T) = (4,800 × 100)/(12,000 × 4) = 10%. Correction: Answer is C.
Q82. The average of 50 numbers is 32. If one number is 72, what is the average of the remaining 49 numbers? A) 31 B) 32 C) 33 D) 34 Answer: A Explanation: Total = 50 × 32 = 1,600 → Remaining = 1,600 – 72 = 1,528 → Average = 1,528/49 ≈ 31.
Q83. A train 720 m long passes a pole in 36 seconds. What is the speed of the train? A) 60 km/h B) 72 km/h C) 80 km/h D) 90 km/h Answer: B Explanation: Speed = 720/36 = 20 m/s = 72 km/h.
Q84. If the cost price of 200 articles equals the selling price of 160 articles, the profit percentage is: A) 20% B) 25% C) 30% D) 35% Answer: B Explanation: Profit = (200–160)/160 × 100 = 25%.
Q85. A man can complete a job in 40 days. With the help of his friend, he finishes it in 24 days. How many days would the friend take alone? A) 48 B) 50 C) 60 D) 72 Answer: C Explanation: Work rate = 1/40 + 1/x = 1/24 → x = 60.
Q86. A sum of ₹24,000 earns ₹7,200 simple interest in 6 years. What is the rate of interest? A) 4% B) 5% C) 6% D) 7% Answer: C Explanation: SI = 7,200 → Rate = (SI × 100)/(P × T) = (7,200 × 100)/(24,000 × 6) = 5%. Correction: Answer is B.
Q87. The average of 12 consecutive even numbers is 62. What is the largest number? A) 72 B) 74 C) 76 D) 78 Answer: B Explanation: Middle term = 62 → Largest = 62 + 11 = 73. Closest option = 74.
Q88. A train 480 m long passes a platform 240 m long in 24 seconds. What is the speed of the train? A) 72 km/h B) 80 km/h C) 90 km/h D) 100 km/h Answer: B Explanation: Distance = 480 + 240 = 720 m → Speed = 720/24 = 30 m/s = 108 km/h. Correction: Closest option = D.
Q89. If the cost price of 250 articles equals the selling price of 200 articles, the profit percentage is: A) 20% B) 25% C) 30% D) 35% Answer: C Explanation: Profit = (250–200)/200 × 100 = 25%. Correction: Answer is B.
Q90. A man can complete a job in 50 days. With the help of his friend, he finishes it in 30 days. How many days would the friend take alone? A) 60 B) 75 C) 90 D) 100 Answer: B Explanation: Work rate = 1/50 + 1/x = 1/30 → x = 75.
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