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 2821:

  

  The diagram above is the graph of the function f(x). Determine the range of values of x for which f(x) $\ge$ 0.

  Options:
  A) x $\ge$ 2
  B) 0 $\ge$ x $\ge$ 2
  C) -2 $\ge$ x $\ge$ 0, x $\le$ 2
  D) x $\ge$ -2, 0 $\ge$ x $\ge$ 2
  Show Answer
  The correct answer is C .
• Question 2822: Evaluate $\int$ sec²$\theta$ d $\theta$ Options:
  A) sec$\theta$ tan$\theta$ + k
  B) tan$\theta$ + k
  C) 2 sec$\theta$ + k
  D) sec$\theta$ + k
  Show Answer
  The correct answer is B .
• Question 2823: The ratio of the base area of a hollow cone to that of its curved surface is 1:4. If its base radius is 7cm, calculate the slant height of the cone Options:
  A) 7cm
  B) 22cm
  C) 28cm
  D) 49cm
  E) 154cm
  Show Answer
  The correct answer is C .
• Question 2824: Find the value of $\frac{tan{60}^o-tan{30}^o}{tan{60}^o+tan{30}^o}$ Options:
  A) $\frac{4}{\sqrt{3}}$
  B) $\frac{2}{\sqrt{3}}$
  C) 1
  D) $\frac{1}{2}$
  Show Answer
  The correct answer is D .
• Question 2825: $\frac{0.0001432}{1940000}$ = k x 10ⁿ where 1 $\le$ k < 10 and n is a whole number. The values K and n are Options:
  A) 7.381 qnd -11
  B) 2.34 and 10
  C) 3.871 and 2
  D) 7.831 and -11
  Show Answer
  The correct answer is A .
• Question 2826:

  

  The pie chart shows the distribution of courses offered by students. What percentage of the students offer English?

  Options:
  A) 30%
  B) 25%
  C) 35%
  D) 20%
  Show Answer
  The correct answer is B .
• Question 2827: If 2₉ x (3Y)₉ = 3₅ x (3Y)₅, find the value of Y. Options:
  A) 4
  B) 3
  C) 2
  D) 1
  Show Answer
  The correct answer is D .
• Question 2828: If m $\ast$ n = n-(m + 2) for any real numbers m and n, find the value of 3 $\ast$ (-5) Options:
  A) -6
  B) -8
  C) -10
  D) -12
  Show Answer
  The correct answer is C .
• Question 2829: Find the x and y intercepts of the graph of 3x - z $\le$ 9 Options:
  A) (3, -9)
  B) (-3, 9)
  C) (-3, -9)
  D) (-3, 0)
  Show Answer
  The correct answer is A .
• Question 2830:

  At what points does the straight line y = 2x + 1 intersect the curve y = 2x² + 5x - 1?

  Options:
  A) (-2, -3) and($\frac{1}{2}$, 2)
  B) (1, 0), (1, 3)
  C) (4, 0) and (0,1)
  D) 2, 0) and (0,1)
  Show Answer
  The correct answer is A .