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 921:

  $\begin{array}{cccccc}\text{Values}& 0& 1& 2& 3& 4\\ \text{Frequency}& 1& 2& 2& 1& 9\end{array}$

  Find the mode of the distribution above

  Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is D .
• Question 922: Find the sum of the first 18 terms of the progression 3, 6, 12...... Options:
  A) 3(2¹⁷ - 1)
  B) 3(2¹⁸ - 1)
  C) 3(2¹⁸ + 1)
  D) 3(2¹⁷ - 1)
  Show Answer
  The correct answer is D .
• Question 923: A student spent ¹/₅of his allowance on books, ¹/₂ of remainder on food and kept the rest for contingencies. What fraction was kept? Options:
  A) ⁷/₁₅
  B) ⁸/₁₅
  C) ²/₅
  D) ⁴/₅
  Show Answer
  The correct answer is C .
• Question 924:

  

  The sketch is the curve of y = ax² + bx + c. Find a, b and c respectively

  Options:
  A) 1, 0, -4
  B) -2, 2, -4
  C) 0, 1, -4
  D) 2, -2, -4
  E) 2, -2, -4
  Show Answer
  The correct answer is A .
• Question 925:

  Find the polynomial if given q(x) = x${}^2$ - x - 5, d(x) = 3x - 1 and r(x) = 7.

  Options:
  A) 3x${}^3$ - 4x${}^2$ - 14x + 12
  B) 3x${}^2$ + 3x - 7
  C) 3x${}^3$ + 4x${}^2$ + 14x - 12
  D) 3x${}^2$ - 3x + 4
  Show Answer
  The correct answer is A .
• Question 926: The angle of elevation of the top (T) of a palm tree from a point (R) on the ground is 30°. The distance from R to the base (B) of the palm tree is 120m. What is the distance between T and R? Options:
  A) 60m
  B) 60$\sqrt{3}$m
  C) 80$\sqrt{3}$m
  D) 120$\sqrt{3}$m
  E) 240m
  Show Answer
  The correct answer is C .
• Question 927: Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number Options:
  A) 2
  B) 3
  C) 4
  D) 5
  E) 6
  Show Answer
  The correct answer is B .
• Question 928: Find the point (x, y) on the Euclidean plane where the curve y = 2x² - 2x + 3 has 2 as gradient Options:
  A) (1, 3)
  B) (2, 7)
  C) (0, 3)
  D) (3, 15)
  Show Answer
  The correct answer is A .
• Question 929: The mean and the range of the set of numbers 1.20, 1.00, 0.90, 1.40, 0.80, 1.20, and 1.10 are m and r respectively. Find m + r Options:
  A) 1.11
  B) 1.69
  C) 1.85
  D) 2.45
  Show Answer
  The correct answer is B .
• Question 930: 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 .