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 1781:

  How many sides has a regular polygon whose interior angles are 120° each?

  Options:
  A) 4
  B) 5
  C) 6
  D) 3
  Show Answer
  The correct answer is C .
• Question 1782:

  Evaluate log${}_2$ 8 – log${}_3$ $\frac{1}{9}$

  Options:
  A) -1 1$\frac{1}{2}$
  B) -1
  C) 1
  D) 5
  Show Answer
  The correct answer is D .
• Question 1783:

  Marks	2	3	4	5	6	7	8
  No. of students	3	1	5	2	4	2	3

  From the table above, if the pass mark is 5, how many students failed the test?

  Options:
  A) 6
  B) 2
  C) 7
  D) 9
  Show Answer
  The correct answer is D .
• Question 1784:

  

  If O is the centre of the circle in the figure, find the value of x

  Options:
  A) 50
  B) 260
  C) 100
  D) 65
  E) 130
  Show Answer
  The correct answer is C .
• Question 1785: Factorize (4a + 3)² - (3a - 2)² Options:
  A) (a + 1)(a + 5)
  B) (a - 5)(7a - 1)
  C) (a + 5)(7a + 1)
  D) a(7a + 1)
  Show Answer
  The correct answer is C .
• Question 1786:

  If w varies inversely as $\frac{uv}{u+v}$ and w =8 when

  u = 2 and v= 6, find a relationship between u, v, w.

  Options:
  A) uvw = 16(u + v)
  B) 16uv = 3w(u + v)
  C) uvw = 12(u + v)
  D) 12uvw = u + v
  Show Answer
  The correct answer is C .
• Question 1787:

  

  The figure below is a Venn diagram showing the elements arranged within sets A, B, C, $ϵ$.

  Use the figure to answer this question

  What is n(A U B)^c ?

  Options:
  A) 2
  B) 3
  C) 4
  D) 7
  Show Answer
  The correct answer is C .
• Question 1788: Evaluate ${\int }_0^{\frac{\pi }{0}}sin2xdx$ Options:
  A) 1
  B) zero
  C) -1/2
  D) -1
  Show Answer
  The correct answer is A .
• Question 1789: The mean of ten positive numbers is 16. When another number is added, the mean becomes 18. Find the eleventh number Options:
  A) 3
  B) 16
  C) 18
  D) 38
  Show Answer
  The correct answer is D .
• Question 1790: x varies directly as y and inversely as z. when x = 5, y = 2 and z = 1. What is the value of x when y = 5 and z = 2? Options:
  A) 2.5
  B) 5
  C) 6.25
  D) 6.52
  E) 7.5
  Show Answer
  The correct answer is C .