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 1591: Simplify $\frac{4a^2-49b^2}{2a^2-5ab-7b^2}$ Options:
  A) $\frac{a-b}{2a+b}$
  B) $\frac{2a+7b}{a-b}$
  C) $\frac{2a-7b}{a+b}$
  D) $\frac{2a-7b}{a-b}$
  Show Answer
  The correct answer is D .
• Question 1592: Evaluate ${\int }_{\frac{-\pi }{2}}^{\frac{\pi }{2}}cosxdx$ Options:
  A) zero
  B) 1
  C) 2
  D) 3
  Show Answer
  The correct answer is C .
• Question 1593: 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 1594: The chances of Usman and Dele passing a Mathematics test are 12 and 13 respectively. What is the probability that neither of them passes the test? Options:
  A) $\frac{3}{5}$
  B) $\frac{2}{5}$
  C) $\frac{4}{15}$
  D) $\frac{1}{5}$
  E) $\frac{2}{15}$
  Show Answer
  The correct answer is C .
• Question 1595:

  

  In the diagram, QTR is a straight line and < PQT = 30${}^{\circ }$. find the sin of < PTR

  Options:
  A) $\frac{8}{15}$
  B) $\frac{2}{3}$
  C) $\frac{3}{4}$
  D) $\frac{15}{16}$
  Show Answer
  The correct answer is C .
• Question 1596: The solution of the quadratic equation px² + qx + b = 0 is Options:
  A) $\sqrt{\frac{-b\pm b^2-4ac}{2a}}$
  B) $\frac{-b\pm \sqrt{p^2-4pb}}{2a}$
  C) $\frac{-q\pm \sqrt{q^2-4bp}}{2p}$
  D) $\frac{-q\pm \sqrt{p^2-4bp}}{2p}$
  Show Answer
  The correct answer is C .
• Question 1597: 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 1598: y = is inversely proportional to x and y = 4 when x = 1/2. Find x when y = 10. Options:
  A) 2
  B) 10
  C) 1/5
  D) 1/10
  Show Answer
  The correct answer is C .
• Question 1599:

  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 1600: The scores of set of final year students in the first semester examination in a paper are 41, 29, 55, 21, 47, 70, 70, 40, 43, 56, 73, 23, 50, 50. Find the median of the scores. Options:
  A) 47
  B) 50
  C) 48$\frac{1}{2}$
  D) 48
  E) 49
  Show Answer
  The correct answer is C .