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 661:

  

  From the cyclic quadrilateral MNOP above, find the value of x.

  Options:
  A) 16°
  B) 25°
  C) 42°
  D) 39°
  Show Answer
  The correct answer is D .
• Question 662: Seven years ago, the age of a father was three times than that of his son, but in six years time the age of the son will be half that of his father, representing the present ages of the father and so by x and y, respectively, the two equations relating x and y are Options:
  A) 3y - x = 0; 2y - x = 0
  B) 3y - x = 14; x - 2y = 6
  C) 3y - x =7; x - 2y = 6
  D) 3y - x = 14; y - 2x = 6
  E) x + 3y = 7; x = 2y = 12
  Show Answer
  The correct answer is B .
• Question 663: If P = $\left(\begin{array}{cc}2& -3\\ 1& 1\end{array}\right)$ Options:
  A) $\left(\begin{array}{cc}-\frac{1}{5}& -\frac{3}{5}\\ -\frac{1}{5}& -\frac{2}{5}\end{array}\right)$
  B) $\left(\begin{array}{cc}\frac{1}{5}& \frac{3}{5}\\ \frac{1}{5}& \frac{2}{5}\end{array}\right)$
  C) $\left(\begin{array}{cc}-\frac{1}{5}& \frac{3}{5}\\ -\frac{1}{5}& \frac{2}{5}\end{array}\right)$
  D) $\left(\begin{array}{cc}\frac{1}{5}& \frac{3}{5}\\ -\frac{1}{5}& \frac{2}{5}\end{array}\right)$
  Show Answer
  The correct answer is D .
• Question 664: Find the two values of y which satisfy the simultaneous equation 3x + y = 8, x² + xy = 6 Options:
  A) -1 and 5
  B) -5 and 1
  C) 1 and 5
  D) 1 and 1
  Show Answer
  The correct answer is A .
• Question 665: What is the mean deviation 0f 3, 5, 8, 11, 12 and 21? Options:
  A) 37
  B) 60
  C) 10
  D) 4.7
  Show Answer
  The correct answer is D .
• Question 666:

  Simplify without using tables $\frac{2\sqrt{14}\times 3\sqrt{21}}{7\sqrt{24}\times 2\sqrt{98}}$

  Options:
  A) $\frac{3\sqrt{14}}{4}$
  B) $\frac{3\sqrt{2}}{4}$
  C) $\frac{3\sqrt{14}}{28}$
  D) $\frac{3\sqrt{2}}{28}$
  Show Answer
  The correct answer is D .
• Question 667: Factory P produces 20,000 bags of cement per day while factory Q produces 15,000 bags per day. If P reduces production by 5% and Q increases production by 5%, determine the effective loss in the number of bags produced per day by the two factories Options:
  A) 250
  B) 750
  C) 1000
  D) 1250
  Show Answer
  The correct answer is A .
• Question 668: Evaluate $\int$ sec²$\theta$ d $\theta$ Options:
  A) sec$\theta$ tan$\theta$ + k
  B) tan$\theta$ + k
  C) 2 sec$\theta$ + k
  D) sec$\theta$ + k
  Show Answer
  The correct answer is B .
• Question 669:

  Solve the inequality: -7 $\le$ 9 - 8x < 16 - x

  Options:
  A) -1 $\le$ x $\le$ 2
  B) -1 $\le$ x < 2
  C) -1 < x < 2
  D) -1 < x $\le$ 2
  Show Answer
  The correct answer is D .
• Question 670: Simplify $\frac{x^2-1}{x^3+2x^2-x-2}$ Options:
  A) $\frac{1}{x+2}$
  B) $\frac{x-1}{x+1}$
  C) $\frac{x-1}{x+2}$
  D) $\frac{1}{x-2}$
  Show Answer
  The correct answer is A .