Mathematics Exam Past Questions and Answers | JAMB, WAEC and NECO

Mathematics looks at measurement, relationships, and properties of numbers and groups using numbers and symbols. Important topics in math include arithmetic, algebra, geometry, and calculus.

• Question 1: Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number Options:
  A) 2
  B) 3
  C) 4
  D) 5
  E) 6
  Show Answer
  The correct answer is B .
• Question 2: Find a factor which is common to all 3 binomial expressions $4a^2-9b^2,8a^3+27b^3,(4a+6b{)}^2$. Options:
  A) 4a + 6b
  B) 4a - 6b
  C) 2a + 3b
  D) 2a - 3b
  E) None
  Show Answer
  The correct answer is C .
• Question 3:

  Factorize 4a${}^2$ - 9b${}^2$

  Options:
  A) (2a-3b) (2a+3b)
  B) (2a-b) (2a+3b)
  C) (2a-3b) (a+3b)
  D) (a-3b) (a+3b)
  Show Answer
  The correct answer is A .
• Question 4: Find n if log₂4 + log₂7 - log₂n = 1 Options:
  A) 10
  B) 14
  C) 27
  D) 28
  Show Answer
  The correct answer is B .
• Question 5: If A(I,2,3,...,10) ; B = (-5,-4,.....,-1) ; C = (-1, 0, 1, 2,....5) List all the elements in (B ∪ C) ∩ A Options:
  A) (-1,2,...5)
  B) (-1,1,....5)
  C) (1,2,..5)
  D) (2,3,...10)
  E) (1,2,...10)
  Show Answer
  The correct answer is C .
• Question 6:

  A trader realises 10x - x${}^2$ Naira profit from the sale of x bags of corn. How many bags will give him the maximum profit?

  Options:
  A) 7
  B) 6
  C) 5
  D) 4
  Show Answer
  The correct answer is C .
• Question 7: If T = 2 π √¹/_g, make g the subject of the formula Options:
  A) (4π l²) / T
  B) (4π²l) / T²
  C) (4π²l²) / T²
  D) (2π√l) / T
  Show Answer
  The correct answer is B .
• Question 8: If $log{X}^{\frac{1}{2}}$ 64 = 3, find the value of x. Options:
  A) 4
  B) 16
  C) 32
  D) 64
  Show Answer
  The correct answer is B .
• Question 9: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 10: Find the value of (4^{$\frac{1}{2}$})⁶ Options:
  A) 1
  B) 2
  C) 4
  D) 6
  E) 8
  Show Answer
  The correct answer is E .