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 1851: If angle $\theta$ is 135^o, evaluate cos$\theta$ Options:
  A) $\frac{1}{2}$
  B) $\frac{\sqrt{2}}{2}$
  C) $-\frac{\sqrt{2}}{2}$
  D) $-\frac{1}{2}$
  Show Answer
  The correct answer is B .
• Question 1852: Which of these angles can be constructed using ruler and a pair of compasses only? Options:
  A) 115^o
  B) 125^o
  C) 135^o
  D) 145^o
  Show Answer
  The correct answer is C .
• Question 1853:

  

  The bar chart above shows the distribution of marks in a class test. If the pass mark is 5, what percentage of students failed the test?

  Options:
  A) 10%
  B) 20%
  C) 50%
  D) 60%
  Show Answer
  The correct answer is C .
• Question 1854: Simplify 4$\sqrt{27}$ + 5$\sqrt{12}$ − 3$\sqrt{75}$ Options:
  A) 7
  B) − 7
  C) − 7$\sqrt{3}$
  D) 7$\sqrt{3}$
  Show Answer
  The correct answer is D .
• Question 1855:

  Find the probability that a number selected at random from 40 to 50 is a prime.

  Options:
  A) $\frac{3}{11}$
  B) $\frac{5}{11}$
  C) $\frac{3}{11}$
  D) $\frac{4}{11}$
  Show Answer
  The correct answer is C .
• Question 1856: In a class of 46 students, 22 play football and 26 play volleyball. If 3 students play both games, how many play neither? Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is A .
• Question 1857: Find the range of values of x for which 7x - 3 > 25 + 3x Options:
  A) x >7
  B) x<7
  C) x>-7
  D) x
  Show Answer
  The correct answer is A .
• Question 1858: The thickness of an 800 pages of book is 18mm. Calculate the thickness of one leaf of the book giving your answer in meters and in standard form Options:
  A) 2.25 x 10^-4m
  B) 50 x 10^-4m
  C) 2.25 x 10^-5m
  D) 4.50 x 10^-5m
  Show Answer
  The correct answer is C .
• Question 1859: List the integral values of x which satisfy the inequality -1 < 5 - 2x $\ge$ 7. Options:
  A) -1, 0, 1, 2
  B) 0, 1, 2, 3
  C) -0, 1, 2, 3
  D) -1, 0, 2, 3
  Show Answer
  The correct answer is A .
• Question 1860: Solve the following equation equation for x² + $\frac{2x}{r^2}$ + $\frac{1}{r^4}$ = 0 Options:
  A) r²
  B) $\frac{1}{r^4}$
  C) -$\frac{1}{r^2}$
  D) 1 - r
  Show Answer
  The correct answer is C .