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 981:

  factorize m${}^3$ - m${}^2$ + 2m - 2

  Options:
  A) (m² + 1)(m - 2)
  B) (m - 1)(m + 1)(m + 2)
  C) (m - 2)(m + 1)(m - 1)
  D) (m² + 2)(m - 1)
  Show Answer
  The correct answer is D .
• Question 982: What must be added to 4x² - 4 to make it a perfect square? Options:
  A) $\frac{-1}{x^2}$
  B) $\frac{1}{x^2}$
  C) 1
  D) -1
  Show Answer
  The correct answer is B .
• Question 983: What is the locus of point that is equidistant from points P(1,3) and Q(3,5)? Options:
  A) y = -χ + 6
  B) y = -χ - 6
  C) y = χ + 6
  D) y = χ - 6
  Show Answer
  The correct answer is A .
• Question 984: Find the value of sin 45^o - cos 30^o Options:
  A) $\frac{2+\sqrt{6}}{4}$
  B) $\frac{\sqrt{2}+\sqrt{3}}{4}$
  C) $\frac{\sqrt{2}+\sqrt{3}}{6}$
  D) $\frac{\sqrt{2}-\sqrt{3}}{2}$
  Show Answer
  The correct answer is D .
• Question 985: A number is selected at random between 10 and 20, both numbers inclusive. Find the probability that the number is an even number Options:
  A) $\frac{5}{11}$
  B) $\frac{1}{2}$
  C) $\frac{6}{11}$
  D) $\frac{7}{10}$
  Show Answer
  The correct answer is C .
• Question 986: Two distinct sectors i the same circle substend 100^o and 30^o respectively at the centre of the circle. Their corresponding arcs are in ratio Options:
  A) 10:3
  B) 1:100
  C) 3:1
  D) 5:2
  Show Answer
  The correct answer is A .
• Question 987:

  

  From the figure, calculate TH in centimeters

  Options:
  A) $\frac{5}{\sqrt{3}+1}$
  B) $\frac{5}{\sqrt{3}-1}$
  C) $\frac{5}{\sqrt{3}}$
  D) $\frac{\sqrt{3}}{5}$
  Show Answer
  The correct answer is B .
• Question 988:

  If $\frac{x}{a+1}$ + $\frac{y}{b}$ = 1. Make y the subject of the relation.

  Options:
  A) $\frac{b(a+1-x)}{a+1}$
  B) $\frac{a+1}{b(a-x+1)}$
  C) $\frac{a(b-x+1)}{b+1}$
  D) $\frac{b}{a(b-x+1)}$
  Show Answer
  The correct answer is A .
• Question 989: Find the value of (4^{$\frac{1}{2}$})⁶ Options:
  A) 1
  B) 2
  C) 4
  D) 6
  E) 8
  Show Answer
  The correct answer is E .
• Question 990: A cinema halll contains a certain number of people. If 25/2% are children, 95/2% are men and 84 are women, find the number of men in the hall. Options:
  A) 63
  B) 84
  C) 113
  D) 133
  Show Answer
  The correct answer is D .