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 291: If $\sqrt{x^2+9}$ = x + 1, solve for x Options:
  A) 5
  B) 4
  C) 3
  D) 2
  E) 1
  Show Answer
  The correct answer is B .
• Question 292: Simplify $\frac{5+\sqrt{7}}{3+\sqrt{7}}$ Options:
  A) 17 - $\sqrt{7}$
  B) 4 - $\sqrt{7}$
  C) 15 - $\sqrt{7}$
  D) 7 - $\sqrt{7}$
  Show Answer
  The correct answer is B .
• Question 293:

  

  In the diagram above calculate the value of x

  Options:
  A) 60${}^{\circ }$
  B) 100${}^{\circ }$
  C) 120${}^{\circ }$
  D) 140${}^{\circ }$
  Show Answer
  The correct answer is C .
• Question 294: Find the value of log${}_{\sqrt{3}}$ 81 Options:
  A) 81
  B) 16
  C) 8
  D) 3
  E) $\sqrt{3}$
  Show Answer
  The correct answer is C .
• Question 295: Calculate the mid point of the line segment y - 4x + 3 = 0, which lies between the x-axis and y-axis. Options:
  A) $\left(\begin{array}{cc}3& -3\\ 8& 2\end{array}\right)$
  B) $\left(\begin{array}{cc}3& 3\\ 8& 2\end{array}\right)$
  C) $\left(\begin{array}{cc}-2& 2\\ 2& 2\end{array}\right)$
  D) $\left(\begin{array}{cc}-2& 3\\ 3& 2\end{array}\right)$
  Show Answer
  The correct answer is A .
• Question 296:

  Divide the expression x³ + 7x² - x - 7 by -1 + x²

  Options:
  A) -x³ + 7x² - x - 7
  B) -x³ = 7x + 7
  C) x - 7
  D) x + 7
  Show Answer
  The correct answer is D .
• Question 297: If three angles of a quadrilateral are (3y - x - z)^o, 3x^o, (2z - 2y - x)^o find the fourth angle in terms of x, y and z Options:
  A) (360 - x- y - z)^o
  B) (360 + x + y - z)^o
  C) (180 - x + y + z)^o
  D) (180 - x + y + z)^o
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  The correct answer is A .
• Question 298:

  $\begin{array}{cccccc}x& 1& 2& 3& 4& 5\\ f& 2& 1& 2& 1& 2\end{array}$

  Find the variance of the frequency distribution above

  Options:
  A) $\frac{3}{2}$
  B) $\frac{9}{4}$
  C) $\frac{5}{2}$
  D) 3
  Show Answer
  The correct answer is B .
• Question 299: 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 300: Make x the subject of the equation a(b + c) + $\frac{5}{d}$ - 2 = 0 Options:
  A) c = $\frac{2d-5-b}{ad}$
  B) c = $\frac{2d-5-abd}{ad}$
  C) c = $\frac{2d-5-ab}{ad}$
  D) c = $\frac{5-2d-b}{ad}$
  Show Answer
  The correct answer is B .