Mathematics is a critical subject in the JAMB syllabus that tests problem-solving ability, logic, and numerical reasoning. Regular practice of past questions is an effective strategy for understanding question patterns, improving speed, and boosting accuracy. This blog provides most repeated Mathematics JAMB past questions and answers, divided into three sections for systematic practice and quick mastery of the subject.
Section 1: Mathematics JAMB Past Questions 1–20
1. The value of 7 × 8 + 6 ÷ 2 is:
a) 56
b) 59
c) 58
d) 60
Answer: c) 58
2. The square root of 144 is:
a) 10
b) 11
c) 12
d) 14
Answer: c) 12
3. If x + 5 = 12, then x = ?
a) 5
b) 6
c) 7
d) 8
Answer: c) 7
4. The value of 3² + 4² is:
a) 5
b) 25
c) 12
d) 7
Answer: b) 25
5. The perimeter of a square with side 6 cm is:
a) 12 cm
b) 18 cm
c) 24 cm
d) 36 cm
Answer: c) 24 cm
6. The area of a rectangle with length 10 cm and width 5 cm is:
a) 15 cm²
b) 50 cm²
c) 30 cm²
d) 20 cm²
Answer: b) 50 cm²
7. The value of 2³ × 2² is:
a) 8
b) 32
c) 16
d) 64
Answer: b) 32
8. If y – 3 = 7, then y = ?
a) 8
b) 10
c) 9
d) 7
Answer: b) 10
9. The sum of angles in a triangle is:
a) 90°
b) 180°
c) 270°
d) 360°
Answer: b) 180°
10. The product of -5 and -6 is:
a) -30
b) 30
c) -11
d) 11
Answer: b) 30
11. If 5x = 20, then x = ?
a) 3
b) 4
c) 5
d) 6
Answer: b) 4
12. The hypotenuse of a right-angled triangle with sides 3 cm and 4 cm is:
a) 5 cm
b) 6 cm
c) 7 cm
d) 8 cm
Answer: a) 5 cm
13. The mean of 2, 4, 6, 8, 10 is:
a) 6
b) 5
c) 7
d) 8
Answer: a) 6
14. 15% of 200 is:
a) 25
b) 30
c) 35
d) 40
Answer: b) 30
15. The coefficient of x in 7x + 5 is:
a) 5
b) 7
c) 12
d) 35
Answer: b) 7
16. The square of 9 is:
a) 18
b) 81
c) 72
d) 27
Answer: b) 81
17. The LCM of 6 and 8 is:
a) 12
b) 14
c) 24
d) 48
Answer: c) 24
18. The HCF of 12 and 18 is:
a) 3
b) 6
c) 12
d) 18
Answer: b) 6
19. The value of 10² ÷ 5 is:
a) 20
b) 25
c) 15
d) 10
Answer: b) 20
20. If f(x) = 2x + 3, then f(4) = ?
a) 7
b) 8
c) 11
d) 10
Answer: c) 11
Section 2: Mathematics JAMB Past Questions 21–40
21. The solution of 3x – 7 = 8 is:
a) 3
b) 4
c) 5
d) 6
Answer: c) 5
22. The circumference of a circle with radius 7 cm is:
a) 21π cm
b) 14π cm
c) 49π cm
d) 7π cm
Answer: a) 14π cm (correct: 2πr → 2×π×7=14π)
23. The area of a circle with radius 7 cm is:
a) 49π cm²
b) 14π cm²
c) 28π cm²
d) 21π cm²
Answer: a) 49π cm²
24. If 2x + 5 = 13, then x = ?
a) 3
b) 4
c) 5
d) 6
Answer: b) 4
25. The sum of interior angles of a pentagon is:
a) 360°
b) 540°
c) 720°
d) 450°
Answer: b) 540°
26. The next number in the sequence 2, 4, 8, 16, … is:
a) 20
b) 24
c) 32
d) 36
Answer: c) 32
27. The roots of x² – 9 = 0 are:
a) ±3
b) ±9
c) 3 only
d) 9 only
Answer: a) ±3
28. The value of 5! (5 factorial) is:
a) 60
b) 120
c) 24
d) 20
Answer: b) 120
29. The simple interest on ₦5000 at 5% per annum for 2 years is:
a) ₦500
b) ₦400
c) ₦1000
d) ₦250
Answer: a) ₦500 (SI = P×R×T ÷ 100 → 5000×5×2 ÷100 =500)
30. The solution of 4x – 3 = 9 is:
a) 2
b) 3
c) 4
d) 5
Answer: b) 3
31. The value of (2³ × 2²) ÷ 2⁴ is:
a) 2
b) 4
c) 8
d) 16
Answer: b) 4
32. The distance between points (2,3) and (5,7) is:
a) 5
b) √25
c) √20
d) √13
Answer: b) 5
33. The median of 2, 4, 6, 8, 10 is:
a) 4
b) 6
c) 5
d) 8
Answer: b) 6
34. 25% of 240 is:
a) 50
b) 60
c) 70
d) 80
Answer: b) 60
35. The value of √64 × √16 is:
a) 32
b) 128
c) 16
d) 64
Answer: a) 32
36. The reciprocal of 5/8 is:
a) 8/5
b) 5/8
c) -5/8
d) -8/5
Answer: a) 8/5
37. The slope of the line passing through points (2,3) and (4,7) is:
a) 2
b) 1
c) 3
d) 4
Answer: a) 2 (slope m = (y₂–y₁)/(x₂–x₁) = (7–3)/(4–2)=4/2=2)
38. The next term in 3, 6, 12, 24, … is:
a) 36
b) 48
c) 60
d) 72
Answer: b) 48
39. The value of 2³ + 3² is:
a) 13
b) 17
c) 18
d) 19
Answer: b) 17
40. The square of 15 is:
a) 200
b) 225
c) 215
d) 250
Answer: b) 225
Section 3: Mathematics JAMB Past Questions 41–50
41. The LCM of 12 and 18 is:
a) 36
b) 54
c) 12
d) 18
Answer: a) 36
42. The HCF of 36 and 60 is:
a) 6
b) 12
c) 18
d) 24
Answer: b) 12
43. The solution of 2x + 7 = 15 is:
a) 2
b) 3
c) 4
d) 5
Answer: c) 4
44. The sum of interior angles of a hexagon is:
a) 720°
b) 540°
c) 360°
d) 600°
Answer: a) 720°
45. If f(x) = x² + 2, then f(3) = ?
a) 7
b) 8
c) 9
d) 11
Answer: d) 11
46. The probability of getting a head in a coin toss is:
a) 1/3
b) 1/2
c) 1/4
d) 1
Answer: b) 1/2
47. The area of a triangle with base 10 cm and height 6 cm is:
a) 30 cm²
b) 60 cm²
c) 40 cm²
d) 20 cm²
Answer: a) 30 cm²
48. The perimeter of an equilateral triangle with side 8 cm is:
a) 24 cm
b) 16 cm
c) 32 cm
d) 20 cm
Answer: a) 24 cm
49. The sum of first 10 natural numbers is:
a) 50
b) 55
c) 45
d) 60
Answer: b) 55
50. The value of 3² × 4² is:
a) 36
b) 144
c) 81
d) 64
Answer: b) 144
Section 4: Maths Past Questions 51–60
Mathematics JAMB Past Questions
51. Solve for x: 3x + 7 = 19
a) 3
b) 4
c) 5
d) 6
Answer: b) 4
- Diagram Question:
The diagram below represents a triangle ABC. Angle A = 50°, Angle B = 60°. Find angle C.
Diagram Description: A triangle labeled ABC with angles A and B marked.
a) 70°
b) 80°
c) 90°
d) 60°
Answer: a) 70° (Sum of angles in triangle = 180°, so 180 – 50 – 60 = 70°)
52. If 5x – 4 = 16, then x = ?
a) 2
b) 3
c) 4
d) 5
Answer: c) 4
53. The area of a rectangle with length 12 cm and width 5 cm is:
a) 60 cm²
b) 17 cm²
c) 30 cm²
d) 50 cm²
Answer: a) 60 cm²
54. Solve for y: 2y/3 = 8
a) 10
b) 12
c) 8
d) 6
Answer: b) 12
55. Diagram Question:
The diagram below shows a right-angled triangle with base = 6 cm and height = 8 cm. Calculate the hypotenuse.
Diagram Description: Right-angled triangle labeled with base 6 cm and height 8 cm.
a) 10 cm
b) 12 cm
c) 14 cm
d) 16 cm
Answer: a) 10 cm (Using Pythagoras theorem: √(6² + 8²) = √(36+64) = √100 = 10 cm)
56. The value of 7² – 4² is:
a) 33
b) 49
c) 33
d) 33
Answer: a) 33 (7²–4² = 49–16 = 33)
57. Solve for x: x/5 + 3 = 8
a) 20
b) 25
c) 15
d) 10
Answer: b) 25
- Diagram Question:
The figure below shows a circle with radius 7 cm. Calculate the circumference.
Diagram Description: Circle labeled with radius 7 cm.
a) 14π cm
b) 49π cm
c) 21π cm
d) 28π cm
Answer: a) 14π cm (Circumference = 2πr = 2×π×7 = 14π cm)
60. The value of (3 × 5)² ÷ 15 is:
a) 15
b) 25
c) 30
d) 20
Answer: b) 25 ((3×5)² ÷15 = 15² ÷ 15 = 225 ÷15 = 15)
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