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 1131: 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 1132: Find the absolute mean deviation of the sample 10, 12, 14, 11, 13. Options:
  A) 14.6
  B) 14
  C) 12
  D) 6.2
  E) 1.2
  Show Answer
  The correct answer is E .
• Question 1133: If sin $\theta$ = $\frac{m-n}{m+n}$; Find the value of 1 + tan²$\theta$ Options:
  A) $\frac{(m^2+n^2)}{m+n}$
  B) $\frac{(m^2+n^2+2mm)}{4mn}$
  C) $\frac{2(m^2+n^2+mn)}{m+n}$
  D) $\frac{(m^2+n^2+mn)}{m+n}$
  Show Answer
  The correct answer is B .
• Question 1134: What is the length of an arc of a circle that substends 2$\frac{1}{2}$ radians at the centre when the raduis of the circle = $\frac{k}{k+1}$ + $\frac{k+1}{k}$ then
  Options:
  A) p< 0
  B) p$\ge$ 0
  C) p $\le$ 0
  D) p < 1
  E) p > 0
  Show Answer
  The correct answer is E .
• Question 1135:

  How many sides has a regular polygon whose interior angles are 120° each?

  Options:
  A) 4
  B) 5
  C) 6
  D) 3
  Show Answer
  The correct answer is C .
• Question 1136: What is the value of r if the distance between the point (4,2) and (1,r) is 3 units? Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is B .
• Question 1137: The pie chart above shows the distribution of students in a secondary school class. If 30 students offered French, how many offered CRK? Options:
  A) 25
  B) 15
  C) 10
  D) 8
  Show Answer
  The correct answer is C .
• Question 1138: Determine the value of x for which (x² - 1) > 0
  Options:
  A) x < -1 or x > 1
  B) -1 < x < 1
  C) x > 0
  D) x < -1
  Show Answer
  The correct answer is A .
• Question 1139: Simplify 16$\frac{1}{2}$ x 4$\frac{1}{2}$ x 27$\frac{1}{3}$ Options:
  A) $\frac{3}{8}$
  B) $\frac{2}{3}$
  C) $\frac{3}{4}$
  D) $\frac{3}{2}$
  Show Answer
  The correct answer is A .
• Question 1140: A binary operation θ defined on the set of real number is such that xθy = xy/6 for all x, y ∈ R. Find the inverse of 20 under this operation when the identity element is 6 Options:
  A) ¹/₁₂
  B) ¹⁰/₃
  C) ¹/₂₀
  D) ⁹/₅
  Show Answer
  The correct answer is D .