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 1221: In a survey of 50 newspaper readers, 40 read Champion and 30 read Guardian, how many read both papers? Options:
  A) 10
  B) 5
  C) 15
  D) 20
  Show Answer
  The correct answer is D .
• Question 1222: (3.2)² - (1.8)² equals Options:
  A) 7.0
  B) 2.56
  C) 13.48
  D) 2.0
  E) 0.07
  Show Answer
  The correct answer is A .
• Question 1223: A binary operation * is defined on the set of positive integers is such x*y = 2x-3y+2 for all positive integers x and y. The binary operation is Options:
  A) commutative and close on the set of positive integers
  B) neither commutative nor closed on the set of ppositive integers
  C) commutative but not closed on the set of positive integers
  D) not cummutative but closed on the set of positive integers
  Show Answer
  The correct answer is B .
• Question 1224: Solve the inequality x - 1 > 4(x + 2)
  Options:
  A) x > -3
  B) x < -3
  C) 2 < x < 3
  D) -3 < x < -2
  Show Answer
  The correct answer is B .
• Question 1225: An arc of a circle of length 22 cm subtends an angle of 3x${}^{\circ }$ at the center of the circle. Find the value of x if the diameter of the circle is 14 cm Options:
  A) 60${}^{\circ }$
  B) 120${}^{\circ }$
  C) 180${}^{\circ }$
  D) 30${}^{\circ }$
  Show Answer
  The correct answer is A .
• Question 1226: If the lines 2y - kx + 2 = 0 and y + x - $\frac{k}{2}$ = 0 intersect at (1, 2), find the value of k Options:
  A) -2
  B) -4
  C) -1
  D) -3
  Show Answer
  The correct answer is A .
• Question 1227:

  In how many ways can the letter of ZOOLOGY be arranged?

  Options:
  A) 720
  B) 360
  C) 840
  D) 120
  Show Answer
  The correct answer is C .
• Question 1228: The solution of the quadratic inequality (x³ + x - 12) ≥ 0 is Options:
  A) x ≥ -3 or x ≤ 4
  B) x ≥ 3 or x ≥ -4
  C) x ≤ 3 or x v -4
  D) x ≥ 3 or x ≤ -4
  Show Answer
  The correct answer is B .
• Question 1229: 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 1230:

  

  In the figure, the area of the shaded segment is

  Options:
  A) 3$\pi$
  B) 9$\frac{\sqrt{3}}{4}$
  C) 3 $\pi -3\frac{\sqrt{3}}{4}$
  D) $\frac{(\sqrt{3-\pi )}}{4}$
  E) $\pi +\frac{9\sqrt{3}}{4}$
  Show Answer
  The correct answer is C .