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 781: An arc of a circle of radius 6cm is 8cm long. Find the area of the sector Options:
  A) 5$\frac{1}{3}$cm²
  B) 24cm²
  C) 36cm²
  D) 84cm²
  Show Answer
  The correct answer is B .
• Question 782: The mean of ten positive numbers is 16. When another number is added, the mean becomes 18. Find the eleventh number Options:
  A) 3
  B) 16
  C) 18
  D) 38
  Show Answer
  The correct answer is D .
• Question 783: Solve the inequality 2 - x > x².
  Options:
  A) x < -2 or x > 1
  B) x > 2 or x< -1
  C) -1 < x < 2
  D) -2 < x < 1
  Show Answer
  The correct answer is D .
• Question 784: The set of value of x and y which satisfies the equations x² - y - 1 = 0 and y - 2x + 2 = 0 is Options:
  A) 1, 0
  B) 1, 1
  C) 2, 2
  D) 0, 2
  E) 1, 2
  Show Answer
  The correct answer is A .
• Question 785: In a survey, it was observed that 20 students read newspapers and 35 read novels. If 40 of the students read either newspapers or novels, what is the probability of the students who read both newspapers and novels? Options:
  A) $\frac{1}{2}$
  B) $\frac{2}{3}$
  C) $\frac{3}{8}$
  D) $\frac{3}{11}$
  Show Answer
  The correct answer is C .
• Question 786:

  The equivalent of (10110.011)${}_2$ in base 10 is?

  Options:
  A) 26.325
  B) 24.372
  C) 42.443
  D) 22.375
  Show Answer
  The correct answer is D .
• Question 787: If $\frac{a}{c}$ = $\frac{c}{d}$ = k, find the value of $\frac{3a^2-ac+c^2}{3b^2-bd+d^2}$ Options:
  A) 3k²
  B) 2k - k²
  C) $\frac{3b^2{k}^2-b{k}^{2}d+d{k}^2}{3b^2-bd+d^2}$
  D) k²
  Show Answer
  The correct answer is C .
• Question 788: 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 789: If the lines 3y = 4x - 1 and qy = x + 3 are parallel to each other, the value of q is Options:
  A) -⁴/₃
  B) -³/₄
  C) ⁴/₃
  D) ³/₄
  Show Answer
  The correct answer is D .
• Question 790:

  

  The equation of the line in the graph is

  Options:
  A) 3y = 4x + 12
  B) 3y = 3x + 12
  C) 3y = -4x + 12
  D) 3y = -4x + 9
  Show Answer
  The correct answer is C .