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 191: In xyz, y = z = 30^o ans XZ = 3cm. Find YZ Options:
  A) $\frac{\sqrt{3}}{2}$ cm
  B) 3$\frac{\sqrt{3}}{2}$ cm
  C) 3$\sqrt{3}$ cm
  D) 2$\sqrt{3}$ cm
  Show Answer
  The correct answer is C .
• Question 192: Factorize 9(x + y)² - 4(x - y)² Options:
  A) (x + y)(5x + y)
  B) (x + y)²
  C) (x + 5y)(5x + y)
  D) 5(x + y)²
  Show Answer
  The correct answer is C .
• Question 193: Find the equation of the perpendicular at the point (4,3) to the line y + 2x = 5 Options:
  A) 2y - x = 4
  B) y + 2x = 3
  C) y + 2x = 5
  D) 2y - x = 2
  Show Answer
  The correct answer is D .
• Question 194: 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 195:

  

  The figure FGHK is a rhombus. What is the value of angle X?

  Options:
  A) 30${}^{\circ }$
  B) 90${}^{\circ }$
  C) 150${}^{\circ }$
  D) 120${}^{\circ }$
  E) 60${}^{\circ }$
  Show Answer
  The correct answer is D .
• Question 196: simplify $\frac{6^{2n+1}\times 9^n\times 4^{2n}}{{18}^n\times 2^n\times {12}^{2n}}$ Options:
  A) 3²ⁿ
  B) 3 x 2^{3n - 1}
  C) 2ⁿ
  D) 6
  E) 1
  Show Answer
  The correct answer is D .
• Question 197: Simplify $\frac{x-7}{x^2-9}$ x $\frac{x^2-3x}{x^2-49}$ Options:
  A) $\frac{x}{(x-3)(x-7)}$
  B) $\frac{x}{(x+3)(x-7)}$
  C) $\frac{x}{(x+3)(x+7)}$
  D) $\frac{x}{(x-3)(x+7)}$
  Show Answer
  The correct answer is C .
• Question 198: If m * n = n - (m+2) for any real number m and n find he value of 3*(-5) Options:
  A) -6
  B) -8
  C) -10
  D) -12
  Show Answer
  The correct answer is C .
• Question 199:

  

  The venn diagram above shows the numbers of students offering music and history in a class of 80 students. If a student is picked at random from the class, what is the probability that he offers Music only?

  Options:
  A) 0.38
  B) 0.13
  C) 0.50
  D) 0.25
  Show Answer
  The correct answer is D .
• Question 200: The number of telephone calls N between two cities A and B varies directly as the population P_A, P_B respectively and inversely as the square of the distance D between A and B. Which of the following equations represents this relation? Options:
  A) N = $\frac{k{p}_A}{D^2}+c{p}_B{D}^2$
  B) N = $\frac{k{p}_A{P}_B}{D^2}$
  C) N = $\frac{k{D}_A{P}_D}{B^2}$
  D) N = $\frac{k{D}_A^2{P}_D}{B}$
  Show Answer
  The correct answer is B .