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 1: A cylindrical tank has a capacity of 6160m³. What is the depth of the tank if the radius of its base is 28cm? Options:
  A) 8.0m
  B) 7.5m
  C) 5.0m
  D) 2.5m
  Show Answer
  The correct answer is D .
• Question 2: Find the variance of 2x, 2x-1 and 2x+1 Options:
  A) 2/3
  B) 2
  C) √(2/3)
  D) 1
  Show Answer
  The correct answer is A .
• Question 3:

  $\text{P}={\left[\frac{\mathrm{Q}(\mathrm{R}-\mathrm{T})}{15}\right]}^{\frac{1}{3}}$

  Make T the subject of the relation.

  Options:
  A) $\text{T}=\frac{\text{R}+\text{P3}}{15\text{Q}}$
  B) $\text{T}=\frac{\text{R}-15{\text{P}}^3}{\text{Q}}$
  C) $\text{T}=\text{R}-\frac{15{\text{P}}^3}{\text{Q}}$
  D) $\text{T}=\frac{15\text{R}+\text{Q}}{{\text{P}}^3}$
  Show Answer
  The correct answer is C .
• Question 4: Solve for x in 8x^-2 = 2/25 Options:
  A) 4
  B) 6
  C) 8
  D) 10
  Show Answer
  The correct answer is D .
• Question 5:

  

  In the figure, PQ is a parallel to ST and QRS = 40${}^{\circ }$. Find the value of x.

  Options:
  A) 55${}^{\circ }$
  B) 60${}^{\circ }$
  C) 65${}^{\circ }$
  D) 75${}^{\circ }$
  Show Answer
  The correct answer is A .
• Question 6:

  An equilateral triangle of side √3cm is inscribed in a circle. Find the radius of the circle.

  Options:
  A) 2/3 cm
  B) 2 cm
  C) 1 cm
  D) 3 cm
  Show Answer
  The correct answer is C .
• Question 7: The ninary operation * is defined on the set of integers p and q by p*q = pq + p + q. Find 2 * (3 * 4). Options:
  A) 59
  B) 19
  C) 67
  D) 38
  Show Answer
  The correct answer is A .
• Question 8: y is inversely proportional to x and y and 6 when x = 7. Find the constant of the variation Options:
  A) 47
  B) 42
  C) 54
  D) 46
  Show Answer
  The correct answer is B .
• Question 9: If ⁿP₃ - 6(ⁿC₄) = 0, find the value of n Options:
  A) 5
  B) 6
  C) 7
  D) 8
  Show Answer
  The correct answer is C .
• Question 10:

  Correct each of the numbers 59.81798 and 0.0746829 to three significant figures and multiply them, giving your answer to three significant figures

  Options:
  A) 4.46
  B) 4.48
  C) 4.47
  D) 4.49
  E) 4.50
  Show Answer
  The correct answer is C .