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 2551: Express 130 kilometers per second in meters per hour Options:
  A) 7.8 x 10^-5
  B) 648 x 10⁶
  C) 7,800,00
  D) 4.68 x 10^-8
  E) 780 x 10⁵
  Show Answer
  The correct answer is D .
• Question 2552:

  Each of the interior angles of a regular polygon is 140°. How many sides has the polygon?

  Options:
  A) 9
  B) 8
  C) 7
  D) 5
  Show Answer
  The correct answer is A .
• Question 2553: In base ten, the number 101101 (base 2) equals Options:
  A) 15
  B) 4
  C) 45
  D) 32
  E) 90
  Show Answer
  The correct answer is C .
• Question 2554:

  If y = 8x${}^3$ - 3x${}^2$ + 7x - 1, find $\frac{{\mathrm{d}}^{2}y}{\mathrm{d}{x}^2}$.

  Options:
  A) 48x - 6
  B) 11x${}^2$ + 6x - 7
  C) 32x + 7
  D) 24x${}^2$ - 6x + 7
  Show Answer
  The correct answer is A .
• Question 2555: The chances of Usman and Dele passing a Mathematics test are 12 and 13 respectively. What is the probability that neither of them passes the test? Options:
  A) $\frac{3}{5}$
  B) $\frac{2}{5}$
  C) $\frac{4}{15}$
  D) $\frac{1}{5}$
  E) $\frac{2}{15}$
  Show Answer
  The correct answer is C .
• Question 2556:

  Factorize completely 81a${}^4$ - 16b${}^4$

  Options:
  A) (3a + 2b)(2a - 3b)(9a² + 4b²)
  B) (3a - 2b)(2a - 3b)(4a² - 9b²)
  C) (3a - 2b)(3a + 2b)(9a² + 4b²)
  D) (6a - 2b)(8a - 3b)(4a³ - 9b²)
  Show Answer
  The correct answer is C .
• Question 2557: In a racing competition, Musa covered a distance 5x km in the first hour and (x + 10)km in the next hour. He was second to Nzozi who covered a total distance of 118km in the two hours. Which of the following inequalities is correct?
  Options:
  A) -1 < x < x < 0
  B) -3 < x < 3
  C) 0 $\le$ x < 18
  D) 15 < x < 18
  Show Answer
  The correct answer is C .
• Question 2558: A binary operation ⊕ on real numbers is defined by x⊕y = xy + x + y for any two real numbers x and y. The value of (-³/₄)⊕6 is Options:
  A) ³/₄
  B) -⁹/₂
  C) ⁴⁵/₄
  D) -³/₄
  Show Answer
  The correct answer is A .
• Question 2559: 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 2560: Find the positive value of x if the standard deviation of the numbers 1, x + 1 is 6 Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is C .