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 2701: If x varies directly as √n and x = 9 when n = 9, find x when n = (17/9) Options:
  A) 4
  B) 27
  C) √3
  D) √17
  Show Answer
  The correct answer is D .
• Question 2702: Find the standard derivation of the following data -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5 Options:
  A) 2
  B) 3
  C) $\sqrt{10}$
  D) $\sqrt{11}$
  Show Answer
  The correct answer is C .
• Question 2703: A frustrum of pyramid with square base has its upper and lower sections as squares of sizes 2m and 5m respectively and the distance between them 6m. Find the height of the pyramid from which the frustrum was obtained. Options:
  A) 8.0 m
  B) 8.4 m
  C) 9.0 m
  D) 10.0 m
  Show Answer
  The correct answer is D .
• Question 2704: Calculate the length in cm. of the area of a circle of diameter 8cm which subtends an angle of 22$\frac{1}{2}$^o at the centre of the circle Options:
  A) 2$\pi$
  B) $\pi$
  C) $\frac{2}{3}$
  D) $\frac{\pi }{2}$
  Show Answer
  The correct answer is D .
• Question 2705: The sum of the interior angles of a pentagon is 6x + 6y. Find y in the terms of x Options:
  A) y = 90 - x
  B) y = 150 - x
  C) y = 60 - x
  D) y = 120 -x
  Show Answer
  The correct answer is A .
• Question 2706: The expression ax² + bx + c equals 5 at x = 1. If its derivative is 2x + 1, what are the values of a, b, c respectively? Options:
  A) 1, 3, 1
  B) 1, 2, 1
  C) 2, 1, 1
  D) 1, 1, 3
  Show Answer
  The correct answer is D .
• Question 2707: Factorize completely 4abx - 2axy -12b²x + 6bxy Options:
  A) 2x(a - 3b)(2b - y)
  B) 2x(3b - a)(2b - y)
  C) 2x(a - 3b)(y - 2b)
  D) 2x(2b - a)(3b - y)
  Show Answer
  The correct answer is A .
• Question 2708: Find the number of sides of a regular polygon whose interior angle is twice the exterior angle. Options:
  A) 6
  B) 2
  C) 3
  D) 8
  Show Answer
  The correct answer is A .
• Question 2709:

  Find the area of a regular hexagon inscribed in a circle of radius 8cm

  Options:
  A) 16$\sqrt{3}$ cm²
  B) 96$\sqrt{3}$ cm²
  C) 192$\sqrt{3}$ cm²
  D) 16$\sqrt{3}$ cm²
  E) 33cm²
  Show Answer
  The correct answer is B .
• Question 2710: Arrange and $\frac{3}{5}$,$\frac{9}{16}$, $\frac{34}{59}$ and $\frac{71}{97}$ in ascending order of magnitude. Options:
  A) $\frac{3}{5}$, $\frac{9}{16}$, $\frac{34}{59}$, $\frac{71}{97}$
  B) $\frac{9}{16}$, $\frac{34}{59}$, $\frac{3}{5}$ , $\frac{71}{97}$
  C) $\frac{3}{5}$, $\frac{9}{16}$, $\frac{71}{97}$, $\frac{34}{59}$
  D) $\frac{9}{16}$, $\frac{3}{5}$, $\frac{71}{97}$, $\frac{34}{59}$
  Show Answer
  The correct answer is B .