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 901: The solution of the quadratic equation bx² + cx + a = 0 is given by Options:
  A) x = b $\pm$ $\frac{\sqrt{b^2-4ac}}{2a}$
  B) x = c $\pm$ $\frac{\sqrt{b^2-4ab}}{2b}$
  C) x = -c $\pm$ $\frac{\sqrt{c^2-4ab}}{2b}$
  D) x = -b $\pm$ $\frac{\sqrt{b^2-4ac}}{2b}$
  Show Answer
  The correct answer is C .
• Question 902: The weights of 30 new-born babies are given as follows: 6, 9, 5, 7, 6, 7, 5, 8, 9, 5, 7, 5, 8, 7, 8, 7, 5, 6, 5, 7, 6, 9, 9, 7, 8, 8, 7, 8, 9, 8. The mode is Options:
  A) 6
  B) 5
  C) 8
  D) 7
  E) 10
  Show Answer
  The correct answer is D .
• Question 903: A bag contains 5 blacks balls and 3 red balls. Two balls are picked at random without replacement. What is the probability that a black and red balls are picked? Options:
  A) 15/28
  B) 13/28
  C) 5/14
  D) 3/14
  Show Answer
  The correct answer is A .
• Question 904: If the mean of the numbers 0, (x+2), (3x+6), and (4x+8) is 4, find their mean deviation. Options:
  A) zero
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is C .
• Question 905: A chord of a circle of a diameter 42cm subtends an angle of 60^o at the centre of the circle. Find the length of the mirror arc Options:
  A) 22cm
  B) 44cm
  C) 110cm
  D) 220cm
  Show Answer
  The correct answer is A .
• Question 906: The larger value of y for which (y - 1)² = 4y - 7 is Options:
  A) 2
  B) 4
  C) 6
  D) 7
  E) 8
  Show Answer
  The correct answer is B .
• Question 907:

  Simplify $(\sqrt[3]{64a^3}{)}^{-1}$

  Options:
  A) 4a
  B) 1/8a
  C) 8a
  D) 1/4a
  Show Answer
  The correct answer is D .
• Question 908:

  Solve the following quadratic inequality: $x^2-x$ - 4 ≤ 2

  Options:
  A) $-3<x<2$
  B) $-2\le x\le 3$
  C) $x\le -2,x\le 3$
  D) $-2<x<3$
  Show Answer
  The correct answer is B .
• Question 909:

  

  If the area of ΔPQR above is 12√3 cm², find the value of q?

  Options:
  A) 6 cm
  B) 7 cm
  C) 8 cm
  D) 5 cm
  Show Answer
  The correct answer is A .
• Question 910:

  

  XYZ is a circle enter o and a radius 7cm. Find the area of the shaded region. θ = 45 x 2 = 90

  Options:
  A) 84cm²
  B) 77cm²
  C) 38cm²
  D) 14cm²
  Show Answer
  The correct answer is D .