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 621:

  Find the missing numerator $\frac{5}{x+1}$ - $\frac{3}{1-x}$ - $\frac{7x-1}{x^2-1}$ = x + 1

  Options:
  A) -1
  B) x - 1
  C) $\frac{3(1-5x)}{x-1}$
  D) $\frac{1}{(x+1)}$
  E) 3(1 - 5x)
  Show Answer
  The correct answer is D .
• Question 622:

  Simplify $\sqrt{27}$ + $\frac{3}{\sqrt{3}}$

  Options:
  A) 4$\sqrt{3}$
  B) $\frac{4}{\sqrt{3}}$
  C) 3$\sqrt{3}$
  D) $\frac{\sqrt{3}}{4}$
  Show Answer
  The correct answer is A .
• Question 623:

  A group of market women sell at least one of yam, plantain and maize. 12 of them sell maize, 10 sell yam and 14 sell plantain. 5 sell plantain and maize, 4 sell yam and maize, 2 sell yam and plantain only while 3 sell all the three items. How many women are in the group?

  Options:
  A) 25
  B) 19
  C) 18
  D) 17
  Show Answer
  The correct answer is A .
• Question 624: Given that the universal set U={14,15,16,17,18,19,20}, J {16,19,20) and K= (14,15,18), find (J' ∩ K')1. Options:
  A) {17}
  B) {16, 17, 19, 20}
  C) {1, 4, 15, 17, 18}
  D) {14, 15, 16, 18, 19, 20}
  E) {14, 15, 16, 17, 18, 19, 20}
  Show Answer
  The correct answer is D .
• Question 625: The solutions of x² - 2x - 1 = 0 are the points of intersection of two graphs. if one of the graphs is y = 2 + x - x², find the second graph Options:
  A) y = 1 - x
  B) y = 1 + x
  C) y = x - 1
  D) y = 3x + 3
  Show Answer
  The correct answer is A .
• Question 626: Two ladders of length 5m and 7m lean against a pole and make angles 45° and 60° with the ground respectively. What is their distance apart on the pole correct to two decimal places? Options:
  A) 9.60m
  B) 6.06m
  C) 2.54m
  D) 2.53m
  E) 2.00m
  Show Answer
  The correct answer is D .
• Question 627: P varies directly as the square of Q and inversely as R. If P = 36, when Q = 3 and R = 4, find P when Q = 5 and R = 2. Options:
  A) 72
  B) 100
  C) 90
  D) 200
  E) 125
  Show Answer
  The correct answer is D .
• Question 628:

  List all integers satisfying the inequality in -2 < 2x-6 < 4

  Options:
  A) 2,3,4 and 5
  B) 2,3
  C) 2,5
  D) 3,4
  Show Answer
  The correct answer is D .
• Question 629: Factorize 9p² - q² + 6qr - 9r² Options:
  A) (3p - 3q + r)(3p - q - 3r)
  B) (6p - 3q - 3r)(3p - q - 4r)
  C) (3p - q + 3r)(3p - q - 3r)
  D) (3q - p + 3r)(3q - p + 3r)
  Show Answer
  The correct answer is C .
• Question 630:

  Let P = {1, 2, u, v, w, x}; Q = {2, 3, u, v, w, 5, 6, y} and R = {2, 3, 4, v, x, y}.

  Determine (P-Q) ∩ R

  Options:
  A) {1, x}
  B) {x y}
  C) {x}
  D) ɸ
  Show Answer
  The correct answer is C .