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 1891: If x₁₀ = 1214₅ find x Options:
  A) 124
  B) 121
  C) 184
  D) 180
  Show Answer
  The correct answer is C .
• Question 1892: The mean and the range of the set of numbers: 1.20, 1.00, 0.90, 1.40, 0.80, 0.80, 1.20 and 1.10 are p and respectively. What is the value of p ÷ q Options:
  A) 1.11
  B) 65
  C) 1.85
  D) 2.45
  E) 3.85
  Show Answer
  The correct answer is B .
• Question 1893: Solve for (x, y) in the equation 2x + y = 4: x^2 + xy = -12 Options:
  A) (6, -8): (-2, 8)
  B) (3, -4): (-1, 4)
  C) (8, -4): (-1, 4)
  D) (-8, 6): (8, -2)
  E) (-4, 3): (4, -1)
  Show Answer
  The correct answer is A .
• Question 1894: In a recent zonal championship games involving 10 teams, teams X and Y were given probabilities $\frac{2}{5}$ and $\frac{1}{3}$ respectively of winning the gold in the football event. What is the probability that either team will win the gold? Options:
  A) $\frac{2}{15}$
  B) $\frac{7}{15}$
  C) $\frac{11}{15}$
  D) $\frac{13}{15}$
  Show Answer
  The correct answer is C .
• Question 1895: Factorize 6^{2x + 1} + 7(6^x) - 5 Options:
  A) [3(6^x) - 5][2(6^x)m + 1]
  B) [3(6^x) + 5][2(6^x) - 1]
  C) [(6^x) - 5][3(6^x) + 1]
  D) [2(6^x) + 5][3(6^x) - 1]
  Show Answer
  The correct answer is B .
• Question 1896:

  

  In the diagram above ∠OPQ is

  Options:
  A) 90${}^{\circ }$
  B) 53${}^{\circ }$
  C) 36${}^{\circ }$
  D) 26${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 1897: If a circular paper disc is trimmed in such a way that its circumference is reduced in the ratio 2:5, In what ratio is the surface reduced? Options:
  A) 8 : 125
  B) 2 : 5
  C) 8 : 25
  D) 4 : 25
  E) 4 : 10
  Show Answer
  The correct answer is D .
• Question 1898: If y = $(x^2+3x-1)÷(3x+4).$ Find dy/dx Options:
  A) $(3x^2+8x+7)÷(3x+4{)}^2$
  B) $x^2+2x+(1÷(x+1{)}^2)$
  C) $2x^2+4x+(1÷(2x+4{)}^2)$
  D) $x^2+3x+(2÷(x+3{)}^2)$
  Show Answer
  The correct answer is A .
• Question 1899: Which of the following angular inequalities defines an obtuse angle?
  Options:
  A) 0° < x < 90°
  B) 0° ≤ x > 180°
  C) 90° < x < 180°
  D) 90° ≤ x < 180°
  E) 90° > x < 180°
  Show Answer
  The correct answer is C .
• Question 1900: Make x the subject of the equation
  s = 2 + $\frac{t}{5}$(x + ⅗y) Options:
  A) x = 5[(s − 2) ÷ t] + 3yt
  B) x = 25[(s − 2) ÷ t] − 3ty
  C) x = [1 ÷ (s − 2)3ty]
  D) x = [5(s − 2) 2 ÷ 3ty] × t
  Show Answer
  The correct answer is B .