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 11: Simplify and express in standard form $\frac{0.00275\times 0.0064}{0.025\times 0.08}$ Options:
  A) 8.8 x 10^-1
  B) 8.8 x 10^-2
  C) 8.8 x 10^-3
  D) 8.8 x 10³
  Show Answer
  The correct answer is C .
• Question 12: Evaluate ${\int }_1^2(6x^2-2x)dx$ Options:
  A) 16
  B) 13
  C) 12
  D) 11
  Show Answer
  The correct answer is D .
• Question 13: Simplify $\frac{1-x^2}{x-x^2}$, where x $\ne$ 0 Options:
  A) $\frac{1}{x}$
  B) $\frac{1-x}{x}$
  C) $\frac{1+x}{x}$
  D) $\frac{1}{x-1}$
  E) $\frac{-x-1}{1}$
  Show Answer
  The correct answer is C .
• Question 14: The solution of the quadratic inequality (x³ + x - 12) ≥ 0 is Options:
  A) x ≥ -3 or x ≤ 4
  B) x ≥ 3 or x ≥ -4
  C) x ≤ 3 or x v -4
  D) x ≥ 3 or x ≤ -4
  Show Answer
  The correct answer is B .
• Question 15:

  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) 38
  D) 30
  Show Answer
  The correct answer is C .
• Question 16: Find the gradient of the line passing through the points (-2, 0) and (0, -4). Options:
  A) 2
  B) -4
  C) -2
  D) 4
  Show Answer
  The correct answer is C .
• Question 17: A point P moves such that it is equidistant from Points Q and R. Find QR when PR = 8cm and angle PRQ = 30° Options:
  A) 4√3cm
  B) 8cm
  C) 8√3cm
  D) 4cm
  Show Answer
  The correct answer is C .
• Question 18: If the mean of the numbers 0, (x+2), (3x+6), and (4x+8) is 4, find their mean deviation. Options:
  A) zero
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is C .
• Question 19: 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 20: If the price of oranges was raised by $\frac{1}{2}$k per orange. The number of oranges a customer can buy for ₦2.40 will be less by 16. What is the present price of an orange? Options:
  A) 2$\frac{1}{2}$
  B) $\frac{2}{15}$
  C) 5$\frac{1}{3}$
  D) 20
  Show Answer
  The correct answer is A .