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 1571: Find the angle of the sectors representing each item in pie chart of the following data 6, 10, 14, 16, 26 Options:
  A) 15^o, 25^o, 35^o, 40^o, 65^o
  B) 60^o, 100^o, 140^o, 160^o, 260^o
  C) 6^o, 10^o, 14^o, 16^o, 26^o
  D) 30^o, 50^o, 70^o, 80^o, 130^o
  E) none of the above
  Show Answer
  The correct answer is D .
• Question 1572: If (x - 2) and (x + 1) are factors of the expression x³ + px² + qx + 1, what is the sum of p and q Options:
  A) 9
  B) -3
  C) 3
  D) $\frac{17}{3}$
  E) $\frac{2}{3}$
  Show Answer
  The correct answer is B .
• Question 1573: 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 .
• Question 1574: The vectors a and b are given in terms of two perpendicular units vectors i and j on a plane by a = 2i - 3j, b = -i + 2j. Find the magnitude of the vector a + 3b Options:
  A) 2
  B) 4
  C) $\sqrt{10}$
  D) 35
  E) 2.2
  Show Answer
  The correct answer is C .
• Question 1575: If x + $\frac{1}{x}$ = 4, find x² + $\frac{1}{x^2}$ Options:
  A) 16
  B) 14
  C) 12
  D) 9
  Show Answer
  The correct answer is B .
• Question 1576:

  Make x the subject of the formula:y = $\frac{3x-9c}{4x+5d}$

  Options:
  A) x = $\frac{(-9c-5dy)}{4y-3}$
  B) x = $\frac{-9c+5dy}{4y-3}$
  C) x = $\frac{(-9c+5dy)}{4y-3}$
  D) x = $\frac{-(9c+5dy)}{4y-3}$
  Show Answer
  The correct answer is D .
• Question 1577: Simplify 3¹/₂ - (2¹/₃ * 1¹/₄) + ³/₅ Options:
  A) 2¹¹/₆₀
  B) 2¹/₆₀
  C) 1¹¹/₆₀
  D) 1¹/₆₀
  Show Answer
  The correct answer is C .
• Question 1578:

  

  The shaded area in the diagram above is represented by

  Options:
  A) {(x,y) : y - 3x < -6}
  B) {(x,y) : y + 3x < 6}
  C) {(x,y) : y + 3x < -6}
  D) {(x,y) : y - 3x < 6}
  Show Answer
  The correct answer is B .
• Question 1579: At what rate will the interest on ₦400 increases to ₦24 in 3 years reckoning in simple interest? Options:
  A) 3%
  B) 2%
  C) 5%
  D) 4%
  Show Answer
  The correct answer is B .
• Question 1580: If 3^2y + 6(3^y) = 27. Find y Options:
  A) 3
  B) -1
  C) 2
  D) -3
  E) 1
  Show Answer
  The correct answer is E .