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 71:

  $\begin{array}{ccccccc}\text{No. of days}& 1& 2& 3& 4& 5& 6\\ \text{No. of students}& 20& 2x& 60& 40& x& 50\end{array}$

  The distribution above shows the number of days a group of 260 students were absent from school in a particular term. How many students were absent for at least four days in the term

  Options:
  A) 180
  B) 120
  C) 110
  D) 40
  Show Answer
  The correct answer is B .
• Question 72: Solve the following simultaneous equation for x. x² + y - 5 = 0, y - 7x + 3 = 0 Options:
  A) -2, 4
  B) 2, 4
  C) -1,8
  D) 1, -8
  Show Answer
  The correct answer is D .
• Question 73:

  

  In the diagram above, O is the centre of the circle, If < UOT = 70${}^{\circ }$ and < RST = 100${}^{\circ }$. Calculate < RUO

  Options:
  A) 20${}^{\circ }$
  B) 25${}^{\circ }$
  C) 50${}^{\circ }$
  D) 80${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 74: If x varies directly as √n and x = 9 when n = 9, find x when n = (17/9) Options:
  A) 4
  B) 27
  C) √3
  D) √17
  Show Answer
  The correct answer is D .
• Question 75:

  

  The diagram above is the graph of the function f(x). Determine the range of values of x for which f(x) $\ge$ 0.

  Options:
  A) x $\ge$ 2
  B) 0 $\ge$ x $\ge$ 2
  C) -2 $\ge$ x $\ge$ 0, x $\le$ 2
  D) x $\ge$ -2, 0 $\ge$ x $\ge$ 2
  Show Answer
  The correct answer is C .
• Question 76:

  Two numbers are removed at random from the numbers 1, 2, 3 and 4. What is the probability that the sum of the numbers removed is even?

  Options:
  A) $\frac{2}{3}$
  B) $\frac{1}{2}$
  C) $\frac{1}{3}$
  D) $\frac{1}{4}$
  Show Answer
  The correct answer is B .
• Question 77: Find the sum of the first 20 terms of the series 8, 12, 16, ....., 96 Options:
  A) 1400
  B) 1040
  C) 960
  D) 920
  Show Answer
  The correct answer is B .
• Question 78: Calculate the mid point of the line segment y - 4x + 3 = 0, which lies between the x-axis and y-axis. Options:
  A) $\left(\begin{array}{cc}3& -3\\ 8& 2\end{array}\right)$
  B) $\left(\begin{array}{cc}3& 3\\ 8& 2\end{array}\right)$
  C) $\left(\begin{array}{cc}-2& 2\\ 2& 2\end{array}\right)$
  D) $\left(\begin{array}{cc}-2& 3\\ 3& 2\end{array}\right)$
  Show Answer
  The correct answer is A .
• Question 79:

  The ages of students in a small primary school were recorded in the table below.

  Age	5-6	7-8	9-10
  Frequency	29	40	38

  
  Estimate the median.

  Options:
  A) 7.725
  B) 6.225
  C) 7.5
  D) 6.5
  Show Answer
  The correct answer is A .
• Question 80: Factorize 6x² - 14x - 12 Options:
  A) 2(x + 3)(3x - 2)
  B) 6(x - 2)(x + 1)
  C) 2(x - 3)(3x + 2)
  D) 6(x + 2)(x - 1)
  E) (3x - 4)(2x + 3)
  Show Answer
  The correct answer is C .