Mathematics is one of the core subjects tested in the Joint Admissions and Matriculation Board (JAMB) exams. The questions focus on essential mathematical principles that test your problem-solving skills, accuracy, and speed.
Over the years, JAMB has been known to repeat certain types of questions in Mathematics, making it vital for candidates to practice past questions. This article will guide you on the most repeated types of questions in JAMB Mathematics and provide examples to help you prepare effectively.
What is JAMB Mathematics Exam About?
The JAMB Mathematics exam is designed to test your understanding of mathematical concepts and how well you can apply them to solve problems. The topics covered include Algebra, Geometry, Trigonometry, Statistics, and Calculus.
The exam comprises multiple-choice questions, and candidates are expected to demonstrate their ability to:
- Solve equations and inequalities.
- Interpret data using statistical methods.
- Understand and apply geometric and trigonometric principles.
- Work with calculus concepts like differentiation and integration.
For an added advantage, reviewing JAMB Syllabus for Mathematics will help you focus on the key areas of study.
Why Focus on Repeated Questions in Mathematics?
Many students who excel in JAMB Mathematics emphasize the importance of practicing past questions. This is because JAMB often reuses questions, either in their original form or with slight modifications. By focusing on these repeated questions, you can:
- Familiarize yourself with JAMB’s question patterns.
- Identify your weak areas and improve on them.
- Save time during the exam by recognizing familiar questions.
If you want to excel in related science courses, you can explore universities offering Computer Science or Engineering.
Examples of JAMB Most Repeated Questions for Mathematics
Below are 20 examples of JAMB Mathematics questions that have been repeated over the years, along with their answers:
1. Solve for xx: 2x+3=72x + 3 = 7
A) 1
B) 2
C) 3
D) 4
Answer: B) 2
2. If the area of a rectangle is 48 cm² and the length is 8 cm, what is the width?
A) 4 cm
B) 5 cm
C) 6 cm
D) 7 cm
Answer: C) 6 cm
3. Find the simple interest on a loan of ₦20,000 at an interest rate of 5% per annum for 3 years.
A) ₦1,000
B) ₦2,000
C) ₦3,000
D) ₦4,000
Answer: C) ₦3,000
4. Calculate the value of sin30∘\sin 30^\circ.
A) 12\frac{1}{2}
B) 1
C) 0
D) 32\frac{\sqrt{3}}{2}
Answer: A) 12\frac{1}{2}
5. What is the mean of the numbers: 2, 4, 6, 8, 10?
A) 5
B) 6
C) 7
D) 8
Answer: B) 6
6. If a=3a = 3 and b=−2b = -2, find abab.
A) -6
B) 6
C) -1
D) 1
Answer: A) -6
7. Find the sum of the angles in a triangle.
A) 90°
B) 180°
C) 360°
D) 270°
Answer: B) 180°
8. Differentiate y=3x2y = 3x^2 with respect to xx.
A) 3x3x
B) 6x6x
C) 2x2x
D) 9x9x
Answer: B) 6x6x
9. Solve for xx in x2−4=0x^2 – 4 = 0.
A) 2
B) -2
C) ±2
D) 0
Answer: C) ±2
10. What is the perimeter of a rectangle with a length of 10 cm and a width of 5 cm?
A) 15 cm
B) 20 cm
C) 25 cm
D) 30 cm
Answer: D) 30 cm
11. Calculate the probability of rolling a 4 on a fair die.
A) 16\frac{1}{6}
B) 13\frac{1}{3}
C) 12\frac{1}{2}
D) 11
Answer: A) 16\frac{1}{6}
12. Simplify 3x+4x−23x + 4x – 2.
A) 7x−27x – 2
B) 7x+27x + 2
C) x−2x – 2
D) x+2x + 2
Answer: A) 7x−27x – 2
13. What is the gradient of the line y=2x+3y = 2x + 3?
A) 3
B) 2
C) -2
D) -3
Answer: B) 2
14. Solve for xx: 2×3=4\frac{2x}{3} = 4.
A) 6
B) 8
C) 12
D) 9
Answer: A) 6
15. Expand (x+2)(x−3)(x + 2)(x – 3).
A) x2−x−6x^2 – x – 6
B) x2+6x^2 + 6
C) x2−6x^2 – 6
D) x2−x+6x^2 – x + 6
Answer: A) x2−x−6x^2 – x – 6
16. Find the mode of the numbers: 2, 3, 3, 5, 7, 8.
A) 2
B) 3
C) 5
D) 7
Answer: B) 3
17. If the circumference of a circle is 44 cm, find the radius (π=22/7\pi = 22/7).
A) 7 cm
B) 14 cm
C) 21 cm
D) 28 cm
Answer: A) 7 cm
18. Solve for xx: 5x−10=05x – 10 = 0.
A) 0
B) 1
C) 2
D) -2
Answer: C) 2
19. What is the LCM of 4 and 6?
A) 8
B) 10
C) 12
D) 14
Answer: C) 12
20. Calculate 1515% of 200.
A) 20
B) 25
C) 30
D) 35
Answer: C) 30