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 261:

  The locus of a point which moves so that it is equidistant from two intersecting straight lines is the?

  Options:
  A) perpendicular bisector of the two lines
  B) angle bisector of the two lines
  C) bisector of the two lines
  D) line parallel to the two lines
  Show Answer
  The correct answer is B .
• Question 262: If three angles of a quadrilateral are (3y - x - z)^o, 3x^o, (2z - 2y - x)^o find the fourth angle in terms of x, y and z Options:
  A) (360 - x- y - z)^o
  B) (360 + x + y - z)^o
  C) (180 - x + y + z)^o
  D) (180 - x + y + z)^o
  Show Answer
  The correct answer is A .
• Question 263: The variance of the scores 1, 2, 3, 4, 5 is Options:
  A) 1.25
  B) 1.40
  C) 2.05
  D) 3.00
  Show Answer
  The correct answer is C .
• Question 264: Given that tan x = $\frac{2}{3}$, where 0^o d" x d" 90^o, Find the value of 2sinx. Options:
  A) $\frac{2\sqrt{13}}{13}$
  B) $\frac{3\sqrt{13}}{13}$
  C) $\frac{4\sqrt{13}}{13}$
  D) $\frac{6\sqrt{13}}{13}$
  Show Answer
  The correct answer is C .
• Question 265:

  

  Find the area of the figure above

  [π = ²²/₇]

  Options:
  A) 12.5 cm²
  B) 75.0 cm²
  C) 78.5 cm²
  D) 84.8 cm²
  Show Answer
  The correct answer is D .
• Question 266:

  

  From the diagram above, find x

  Options:
  A) 65${}^{\circ }$
  B) 50${}^{\circ }$
  C) 75${}^{\circ }$
  D) 55${}^{\circ }$
  Show Answer
  The correct answer is A .
• Question 267: Find the value of x for which the function y = x³ - x has a minimum value. Options:
  A) $-\sqrt{3}$
  B) $-\sqrt{\frac{3}{3}}$
  C) $\sqrt{\frac{3}{3}}$
  D) $\sqrt{3}$
  Show Answer
  The correct answer is C .
• Question 268:

  

  Which of the following equations represent the graph above?

  Options:
  A) y = 2+7x+4x²
  B) y = 2-7x+4x²
  C) y = 2+7x-4x²
  D) y = 2-7x-4x²
  Show Answer
  The correct answer is D .
• Question 269: Factorize completely the expression abx² + 6y - 3ax - 2byx Options:
  A) (ax - 2y)(bx - 3)
  B) (bx + 3)(2y - ax)
  C) (bx + 3)(ax - 2y)
  D) (ax - 2y)(ax - b)
  Show Answer
  The correct answer is A .
• Question 270: The graph of the function y = x² + 4 and a straight line PQ are drawn to solve the equation x² - 3x + 2 = 0. What is the equation of PQ? Options:
  A) y = 3x - 2
  B) y = 3x + 2
  C) y = 3x - 4
  D) y = 3x + 4
  Show Answer
  The correct answer is B .