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 1961: The graph of the function y = x² + 4 and a straight line PQ are drawn to solve the equation x² - 3x + 2 = 0. What is the equation of PQ? Options:
  A) y = 3x - 2
  B) y = 3x + 2
  C) y = 3x - 4
  D) y = 3x + 4
  Show Answer
  The correct answer is B .
• Question 1962: 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 1963: What will be the value of k so that the quadratic equation kx² - 4x + 1 = 0 has two equal roots? Options:
  A) 2
  B) 3
  C) 4
  D) 8
  E) $\frac{1}{4}$
  Show Answer
  The correct answer is C .
• Question 1964: For what range of values of x is $\frac{1}{2}$x + $\frac{1}{4}$ > $\frac{1}{3}$x + $\frac{1}{2}$?
  Options:
  A) x < $\frac{3}{2}$
  B) x > $\frac{3}{2}$
  C) x < -$\frac{3}{2}$
  D) x > -$\frac{3}{2}$
  Show Answer
  The correct answer is B .
• Question 1965: W is directly proportional to U. If W = 5 when U = 3, find U when W = $\frac{2}{7}$ Options:
  A) $\frac{6}{35}$
  B) $\frac{10}{21}$
  C) $\frac{21}{10}$
  D) $\frac{35}{6}$
  Show Answer
  The correct answer is A .
• Question 1966: The length of a notebook 15cm, was measured as 16.8cm. Calculate the percentage error to 2 significant figures. Options:
  A) 12.00%
  B) 11.00%
  C) 10.71%
  D) 0.12%
  Show Answer
  The correct answer is A .
• Question 1967:

  

  The figure represents the graphs of y = x(2 - x) and y = (x - 1)(x - 3). What are the x-coordinates of P, Q and F respectively?

  Options:
  A) 1, 3, 2
  B) 0, 0, 0
  C) 0, 2, 3
  D) 1, 2, 3
  Show Answer
  The correct answer is D .
• Question 1968: A binary operation ⊗ defined on the set of integers is such that m⊗n = m + n + mn for all integers m and n. Find the inverse of -5 under this operation, if the identity element is 0 Options:
  A) -⁵/₄
  B) -⁵/₆
  C) zero
  D) 5
  Show Answer
  The correct answer is A .
• Question 1969:

  Given T = { even numbers from 1 to 12 }
  N = {common factors of 6, 8 and 12}
  Find T ∩ N

  Options:
  A) {2, 3}
  B) {2, 3, 4}
  C) {3, 4, 6}
  D) {2}
  Show Answer
  The correct answer is D .
• Question 1970: if 12 = x, find x where e = 12 Options:
  A) 20
  B) 15
  C) 14
  D) 12
  Show Answer
  The correct answer is A .