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 2021: Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and boys was 2950, find y. Options:
  A) 51
  B) 48
  C) 30
  D) 25
  E) 18
  Show Answer
  The correct answer is C .
• Question 2022: If S = $\sqrt{t^2-4t+4}$, find t in terms of S Options:
  A) S² - 2
  B) S + 2
  C) S - 2
  D) S² + 2
  Show Answer
  The correct answer is B .
• Question 2023: Two numbers are removed at random from the numbers 1, 2, 3 and 4. What is the probability that the sum of the numbers removed is even? Options:
  A) $\frac{2}{3}$
  B) $\frac{2}{15}$
  C) $\frac{1}{2}$
  D) $\frac{1}{4}$
  Show Answer
  The correct answer is C .
• Question 2024: The quantity (x + y) is a factor of Options:
  A) x² + y²
  B) x³ - y³
  C) 2x² - 3xy + y² - x + 1
  D) 2x³ + 2x²y - xy + 3x - y² + 3y
  E) x⁵ - y⁵
  Show Answer
  The correct answer is D .
• Question 2025:

  

  Triangle SPT is the solution of the linear inequalities

  Options:
  A) 2y - x - 2 ≤ 0, y + 2x + 2 ≥ 0, -2 ≤ x ≤ - 1
  B) -2 ≤ x ≤ 2, y ≥ 0, y + 2x + 2 ≤ 0, x ≤ 0
  C) 2y - x - 2 ≤ 0, y + 2x + 2 ≤ 0, y ≥ 0, x ≤ 0
  D) 2y - x - 2 ≥ 0, y + 2x + 2 ≤ 0, x ≤ 0
  Show Answer
  The correct answer is A .
• Question 2026:

  Calculate the mean deviation of the first five prime numbers.

  Options:
  A) 2.72
  B) 5.6
  C) 5.25
  D) 13.6
  Show Answer
  The correct answer is A .
• Question 2027:

  The angle of elevation and depression of the top and bottom of another building, measured from the top of a 24 m tall building, is 30° and 60°, respectively. Determine the second building's height.

  Options:
  A) 24 m
  B) 32√3 m
  C) 24√3
  D) 32 m
  Show Answer
  The correct answer is D .
• Question 2028: An aeroplane flies due north from airport P to Q and then flies due east R. If Q is equidistant from P and R, find the bearing of P and R Options:
  A) 90${}^{\circ }$
  B) 135${}^{\circ }$
  C) 225${}^{\circ }$
  D) 270${}^{\circ }$
  Show Answer
  The correct answer is C .
• Question 2029:

  $\begin{array}{ccccc}x& 2& 4& 6& 8\\ f& 4& y& 6& 5\end{array}$

  If the mean of the above frequency distribution is 5.2, find y

  Options:
  A) 2, 1
  B) 1, 2
  C) 1, 5
  D) 5, 2
  Show Answer
  The correct answer is C .
• Question 2030:

  $\begin{array}{cccc}\text{Marks}& 2& 3& 4\\ \text{Frequency}& 4& 4& y\end{array}$

  The table above shows the frequency distribution of marks obtained by a group of students. If the total mark is 48, find the value of y.

  Options:
  A) 6
  B) 8
  C) 7
  D) 5
  Show Answer
  The correct answer is C .