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 2191:

  Find the value of x and y in the simultaneous equation: 3x + y = 21; xy = 30

  Options:
  A) x = 3 or 7, y = 12 or 8
  B) x = 6 or 1, y = 11 or 5
  C) x = 2 or 5, y = 15 or 6
  D) x = 1 or 5, y = 10 or 7
  Show Answer
  The correct answer is C .
• Question 2192: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 2193:

  If sin $\theta$ = $\frac{x}{y}$ and 0^o < 90^o, then find $\frac{1}{tan\theta }$.

  Options:
  A) $\frac{x}{\sqrt{y^2-x^2}}$
  B) $\frac{y}{x}$
  C) $\frac{\sqrt{y^2+x^2}}{y^2-x^2}$
  D) $\frac{y^2-x^2}{x}$
  Show Answer
  The correct answer is D .
• Question 2194: A survey of 100 students in an institution shows that 80 students speak Hausa and 20 students speak Igbo, while only 9 students speak both language. How many students speak neither Hausa nor Igbo? Options:
  A) orange
  B) 9
  C) 11
  D) 20
  Show Answer
  The correct answer is B .
• Question 2195: If p + 1, 2P - 10, 1 - 4p²are three consecutive terms of an arithmetic progression, find the possible values of p Options:
  A) -4, 2
  B) -3, $\frac{4}{11}$
  C) -$\frac{4}{11}$, 2
  D) 5, -3
  Show Answer
  The correct answer is C .
• Question 2196:

  It takes 12 men 8 hours a day to finish a piece of work in 4 days. In how many days will it take 4 men working 16 hours a day to complete the same piece of work?

  Options:
  A) 6 days
  B) 8 days
  C) 10 days
  D) 12 days
  Show Answer
  The correct answer is A .
• Question 2197: If log₂ y = 3 - log₂x $\frac{3}{2}$ find y when x = 4 Options:
  A) 8
  B) $\sqrt{65}$
  C) 4$\sqrt{2}$
  D) 3
  E) 1
  Show Answer
  The correct answer is E .
• Question 2198:

  Evaluate $\frac{2{\log }_{3}9\times {\log }_3{81}^{-2}}{{\log }_{5}625}$

  Options:
  A) 4
  B) -32
  C) -8
  D) 16
  Show Answer
  The correct answer is C .
• Question 2199: Find y, if $\sqrt{12}-\sqrt{147}$ + y$\sqrt{3}$ = 0 Options:
  A) 3
  B) 7
  C) 1
  D) 5
  Show Answer
  The correct answer is D .
• Question 2200: If 8^{$\frac{x}{2}$} = (2^{$\frac{3}{8}$})(4$\frac{3}{4}$), find x Options:
  A) $\frac{3}{8}$
  B) $\frac{3}{4}$
  C) $\frac{4}{5}$
  D) $\frac{5}{4}$
  Show Answer
  The correct answer is D .