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 2641:

  

  In the diagram above , XZ is the diameter of the circle XZW, with center O and radius 15/2 cm. If XY = 12 cm, find the area of the triangle XYZ

  Options:
  A) 54 cm²
  B) 45 cm²
  C) 27 cm²
  D) 75 cm²
  Show Answer
  The correct answer is A .
• Question 2642: Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135° Options:
  A) 271.5cm²
  B) 135.8cm²
  C) 96.0cm²
  D) 48.0cm²
  E) 33.9cm²
  Show Answer
  The correct answer is E .
• Question 2643: Solve the inequalities for which $\frac{x+4}{3}-\frac{x-3}{2}<4$. Options:
  A) x < 7
  B) x > -7
  C) x < -7
  D) x > 7
  Show Answer
  The correct answer is B .
• Question 2644: Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135° Options:
  A) 271.5cm²
  B) 135.8cm²
  C) 96.0cm²
  D) 48.0cm²
  E) 33.9cm²
  Show Answer
  The correct answer is E .
• Question 2645: The nth term of a sequence is given as 4 x 3(3 - n). Calculate the third term. Options:
  A) 12
  B) 32
  C) 4
  D) 3
  E) 1
  Show Answer
  The correct answer is C .
• Question 2646: 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 2647: The bearings of P and Q from a common point N are 020° and 300° respectively. If P and Q are also equidistant from N, find the bearing of P from Q. Options:
  A) 040°
  B) 070°
  C) 280°
  D) 320°
  Show Answer
  The correct answer is B .
• Question 2648: If the function y = 5x is graphed, what would be its intercept on the y-axis? Options:
  A) 5
  B) $\frac{1}{5}$
  C) 1
  D) 2
  E) zero
  Show Answer
  The correct answer is E .
• Question 2649: At what value of x is the function x² + x + 1 minimum? Options:
  A) 1
  B) $\frac{3}{4}$
  C) $\frac{5}{3}$
  D) 9
  Show Answer
  The correct answer is A .
• Question 2650: Simplify $\frac{3}{x}+\frac{15}{2y}+\frac{6}{xy}$ Options:
  A) $\frac{2y-5x}{4}$
  B) $\frac{9(2x-5x)}{x^2{y}^2}$
  C) $\frac{5x-2y}{2}$
  D) $\frac{c^2{y}^2}{18y-45x}$
  E) $\frac{4}{2y-5x}$
  Show Answer
  The correct answer is A .