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 971:

  

  In the figure, WU//YZ, WY//YZ = 12cm, VZ = 6cm, XU = 8cm. Determine the length of WU.

  Options:
  A) 1cm
  B) 6cm
  C) 2cm
  D) 4cm
  E) 3cm
  Show Answer
  The correct answer is D .
• Question 972: Simplify $\frac{x-7}{x^2-9}$ x $\frac{x^2-3x}{x^2-49}$ Options:
  A) $\frac{x}{(x-3)(x-7)}$
  B) $\frac{x}{(x+3)(x-7)}$
  C) $\frac{x}{(x+3)(x+7)}$
  D) $\frac{x}{(x-3)(x+7)}$
  Show Answer
  The correct answer is C .
• Question 973: Express 1223456 to 3 significant figures Options:
  A) 123000
  B) 124000
  C) 125000
  D) 126000
  Show Answer
  The correct answer is A .
• Question 974: One angle of a rhombus is 60^o. The shorter of the two diagonals is 8cm long. Find the length of the longer one. Options:
  A) 8$\sqrt{3}$
  B) $\frac{16}{\sqrt{3}}$
  C) $\sqrt{3}$
  D) $\frac{10}{\sqrt{3}}$
  Show Answer
  The correct answer is A .
• Question 975: The ratio of the base area of a hollow cone to that of its curved surface is 1:4. If its base radius is 7cm, calculate the slant height of the cone Options:
  A) 7cm
  B) 22cm
  C) 28cm
  D) 49cm
  E) 154cm
  Show Answer
  The correct answer is C .
• Question 976: Triangle OPQ above is the solution of the inequalities Options:
  A) x + 1 ≥ 0, y + x ≤ 0, y - x ≥ 0
  B) y + x ≤ 0, y - x ≥ 0, x -1 ≥ 0
  C) x - 1 ≤ 0, y - x ≥ o, y + x ≥ 0
  D) x - 1 ≤ 0, y + x ≤ 0, y - x ≤ 0
  Show Answer
  The correct answer is A .
• Question 977: Simplify (25)^-1/₂ x (27)¹/₃ + (121)^-1/₂ x (625)^-1/₄ Options:
  A) ³⁴/₅₅
  B) ⁹/₁₁
  C) ¹⁴/₅
  D) ³/₂₇₅
  Show Answer
  The correct answer is A .
• Question 978: A chord of circle of radius 7cm is 5cm from the centre of the maximum possible area of the square? Options:
  A) 4√6 cm
  B) 3√6 cm
  C) 6√6 cm
  D) 2√6 cm
  Show Answer
  The correct answer is A .
• Question 979:

  

  In $△$XYZ, determine the cosine of angle Z.

  Options:
  A) $\frac{3}{39}$
  B) $\frac{29}{36}$
  C) $\frac{14}{5}$
  D) $\frac{7}{5}$
  Show Answer
  The correct answer is B .
• Question 980: If x + $\frac{1}{x}$ = 4, find x² + $\frac{1}{x^2}$ Options:
  A) 16
  B) 14
  C) 12
  D) 9
  Show Answer
  The correct answer is B .