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 131: Find the value of $\left|\begin{array}{ccc}0& 3& 2\\ 1& 7& 8\\ 0& 5& 4\end{array}\right|$ Options:
  A) 12
  B) 10
  C) -1
  D) -2
  Show Answer
  The correct answer is D .
• Question 132:

  

  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 133:

  Ina class of 150 students, the sector in a pie chart representing the students offering physics has angle 12${}^o$. How many students are offering physics?

  Options:
  A) 18
  B) 15
  C) 10
  D) 5
  Show Answer
  The correct answer is D .
• Question 134:

  

  The mean and the range of the set of numbers 1, 20, 1.00, 0.90, 1.40, 0.80, 1.20 and 1.10 are me and r

  Options:
  A) 1.11
  B) 1.65
  C) 1.85
  D) 2.45
  Show Answer
  The correct answer is B .
• Question 135: Simplify $\frac{x+2}{x+1}$ - $\frac{x-2}{x+2}$ Options:
  A) $\frac{3}{x+1}$
  B) $\frac{3x+2}{(x+1)(x+2)}$
  C) $\frac{5x+6}{(x+1)(x+2)}$
  D) $\frac{2x^2+5x+2}{(x+1)(x+2)}$
  Show Answer
  The correct answer is C .
• Question 136: If f(x - 2) = 3x² + 4x + 1. Find the area of the sector Options:
  A) 8
  B) 40
  C) 7
  D) 24
  E) 32
  Show Answer
  The correct answer is B .
• Question 137: Given: p = {1, 3, 5, 7, 9, 11} and Q = {2, 4, 6, 8, 10, 12}. Determine the relationship between P and Q Options:
  A) P = Q
  B) P $\supset$ Q
  C) p ∩ Q = $\varphi$
  D) Q ∪ P
  Show Answer
  The correct answer is C .
• Question 138: The binary operation on the set of real numbers is defined by m*n = $\frac{mn}{2}$ for all m, n $\in$ R. If the identity element is 2, find the inverse of -5 Options:
  A) $-\frac{4}{5}$
  B) $-\frac{2}{5}$
  C) 4
  D) 5
  Show Answer
  The correct answer is A .
• Question 139: A cliff on the bank of a river is 300 meter high. if the angle of depression of a point on the opposite side of the river is 60${}^{\circ }$, find the width of the river. Options:
  A) 100m
  B) 75√3 m
  C) 100√3m
  D) 200√3m
  Show Answer
  The correct answer is C .
• Question 140: If 9x² + 6xy + 4y² is a factor of 27x³ - 8y³, find the other factor. Options:
  A) 2y + 3x
  B) 2y - 3x
  C) 3x + 2y
  D) 3x - 2y
  Show Answer
  The correct answer is D .