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 281: Calculate the range of 20, -6, 25, 30, 21, 28, 32, 33, 34, 5, 3, 2, and 1. Options:
  A) 32
  B) 36
  C) 33
  D) 40
  Show Answer
  The correct answer is D .
• Question 282: Differentiate $\frac{6x^3-5x^2+1}{3x^2}$ with respect to x Options:
  A) $\frac{2+2}{3x^3}$
  B) 2 + $\frac{1}{6x}$
  C) 2 - $\frac{2}{3x^3}$
  D) $\frac{1}{5}$
  Show Answer
  The correct answer is C .
• Question 283: A regular polygon of n sides has 160^o as the size of each interior angle. Find n Options:
  A) 18
  B) 16
  C) 14
  D) 12
  Show Answer
  The correct answer is A .
• Question 284:

  

  In a class of 30 students, the marks scored in an examination are displayed in the histogram. What percentage of the student scored more than 40%?

  Options:
  A) 14%
  B) 40%
  C) 40$\frac{3}{4}$%
  D) 53$\frac{1}{3}$%
  Show Answer
  The correct answer is C .
• Question 285: If 3x - $\frac{1}{4}$^{-$\frac{1}{2}$} > $\frac{1}{4}$ - x, then the interval of values of x is
  Options:
  A) x > $\frac{1}{3}$
  B) x < $\frac{1}{3}$
  C) x < $\frac{1}{4}$
  D) x < $\frac{9}{16}$
  E) x > $\frac{9}{16}$
  Show Answer
  The correct answer is E .
• Question 286: Find the locus of a particle which moves in the first quadrant so that it is equidistant from the lines x = 0 and y = 0 (where k is a constant) Options:
  A) x + y = 0
  B) x - y = 0
  C) x + y + k = 0
  D) x - y - k = 0
  Show Answer
  The correct answer is B .
• Question 287: A chord is drawn 5 cm away from the centre of a circle of radius 13 cm. Calculate the length of the chord. Options:
  A) 7 cm
  B) 9 cm
  C) 12 cm
  D) 24 cm
  Show Answer
  The correct answer is C .
• Question 288: 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 289: The sum of four numbers is 1214₅. What is the average expressed in base five? Options:
  A) 114
  B) 141
  C) 401
  D) 411
  Show Answer
  The correct answer is B .
• Question 290: a binary operation $\oplus$ o the set of rational numbers is defined as x $\oplus$ y = $\frac{x^2-y^2}{2xy}$. Find -5 $\oplus$ 3 Options:
  A) $\frac{8}{15}$
  B) -$\frac{17}{15}$
  C) $\frac{17}{15}$
  D) $\frac{8}{-15}$
  Show Answer
  The correct answer is D .