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 581: Marks scored by some children in an arithmetic test are:5, 3, 6, 9, 4, 7, 8, 6, 2, 7, 8, 4, 5, 2, 1, 0, 6, 9, 0, 8.
  The arithmetic mean of the marks is Options:
  A) 6
  B) 5
  C) 8
  D) 7
  E) 10
  Show Answer
  The correct answer is B .
• Question 582:

  

  In the figure, if XZ is 10cm, calculate RY in cm.

  Options:
  A) 10
  B) 10(1 - $\frac{1}{\sqrt{3}}$)
  C) 10(1 - $\frac{1}{\sqrt{2}}$)
  D) 10[1 - $\sqrt{3}$]
  Show Answer
  The correct answer is B .
• Question 583: A man earns ₦3,500 per month out of which he spends 15% on his children's education. If he spends additional ₦1,950 on food, how much does he have left? Options:
  A) ₦525
  B) ₦1,025
  C) ₦1,950
  D) ₦2,975
  Show Answer
  The correct answer is B .
• Question 584: Evaluate (2.813 x 10^-3 x 1.063) (5.637 x 10^-2) Options:
  A) 0.056
  B) 0.055
  C) 0.054
  D) 0.54
  Show Answer
  The correct answer is B .
• Question 585:

  The angle of a sector of s circle, radius 10.5cm, is 48^o. Calculate the perimeter of the sector.

  Options:
  A) 28.8cm
  B) 25.4cm
  C) 25.6cm
  D) 29.8cm
  Show Answer
  The correct answer is D .
• Question 586: Quantities in the proportions 1, 4, 6, 7 are to be represented in a pie chart. Calculate the angle of the sector with proportion 7 Options:
  A) 20^o
  B) 80^o
  C) 120^o
  D) 140^o
  Show Answer
  The correct answer is D .
• Question 587: Simplify $\frac{\sqrt{5}(\sqrt{147}-\sqrt{12}}{\sqrt{15}}$ Options:
  A) 5
  B) $\frac{1}{5}$
  C) $\frac{1}{9}$
  D) 9
  Show Answer
  The correct answer is A .
• Question 588: If x is negative, what is the range of values of x within which $\frac{x+1}{3}$ > $\frac{1}{X+3}$
  Options:
  A) 3 < x < 4
  B) -4 < x < -3
  C) -2 < x < -1
  D) -3 < x < 0
  Show Answer
  The correct answer is B .
• Question 589:

  Find the matrix A

  A $\left[\begin{array}{cc}0& 1\\ 2& -1\end{array}\right]$ =$\left[\begin{array}{cc}2& -1\\ 1& 0\end{array}\right]$

  Options:
  A) $\left[\begin{array}{cc}2& 1\\ {-}^1{/}_2& {-}^1{/}_2\end{array}\right]$
  B) $\left[\begin{array}{cc}0& 1\\ {}^1{/}_2& {}^1{/}_2\end{array}\right]$
  C) $\left[\begin{array}{cc}2& 1\\ 0& -1\end{array}\right]$
  D) $\left[\begin{array}{cc}2& 1\\ {}^1{/}_2& -2\end{array}\right]$
  Show Answer
  The correct answer is B .
• Question 590:

  If x = {n² + 1 : n is positive integer and 1$\le$ n $\le$ 5}, y = {5n : n is positive integer and 1 $\le$ n $\le$ 5}, find x ∩ y.

  Options:
  A) {5, 10}
  B) {5, 10, 15}
  C) {2, 5 ,10}
  D) {5, 10, 15, 20}
  Show Answer
  The correct answer is A .