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 1261: Solve the equation: $\frac{3}{[2(x-2)]}-\frac{2}{[3(2-x)]}=0$ Options:
  A) 3
  B) 2
  C) $\frac{3}{2}$
  D) $\frac{2}{3}$
  E) -3
  Show Answer
  The correct answer is B .
• Question 1262:

  $\begin{array}{cccccc}\text{Age in years}& 13& 14& 15& 16& 17\\ \text{No. of students}& 3& 10& 30& 42& 15\end{array}$

  The frequency distribution above shows the ages of students in a secondary school. In a pie chart constructed to represent the data, the angles corresponding to the 15 years old is

  Options:
  A) 27^o
  B) 30^o
  C) 54^o
  D) 108^o
  Show Answer
  The correct answer is D .
• Question 1263:

  $\frac{\frac{2}{3}÷\frac{4}{5}}{\frac{1}{4}+\frac{3}{5}-\frac{1}{3}}$

  Options:
  A) $\frac{31}{50}$
  B) $\frac{20}{31}$
  C) $\frac{31}{20}$
  D) $\frac{50}{31}$
  Show Answer
  The correct answer is D .
• Question 1264:

  

  In the figure, the line segment ST is tangent to two circles at S and T. O and Q are the centres of the circles with OS = 5cm. QT = 2cm and OR = 14cm. Find ST

  Options:
  A) 7 $\sqrt{3}$cm
  B) 12.9cm
  C) $\sqrt{87}$cm
  D) 7cm
  Show Answer
  The correct answer is B .
• Question 1265:

  Find the equation of straight line passing through (2, 3) and perpendicular to the line $3x+2y+4=0$

  Options:
  A) 3y = 5x - 2
  B) y = $\frac{5}{3}\times -2$
  C) None of these
  D) 3y = 2x + 5
  Show Answer
  The correct answer is D .
• Question 1266: Given that the universal set U={14,15,16,17,18,19,20}, J {16,19,20) and K= (14,15,18), find (J' ∩ K')1. Options:
  A) {17}
  B) {16, 17, 19, 20}
  C) {1, 4, 15, 17, 18}
  D) {14, 15, 16, 18, 19, 20}
  E) {14, 15, 16, 17, 18, 19, 20}
  Show Answer
  The correct answer is D .
• Question 1267: What value of s will make the function x(4-x) a maximum Options:
  A) 4
  B) 3
  C) 2
  D) 1
  Show Answer
  The correct answer is C .
• Question 1268:

  Find T in terms of K, Q and S if S = 2r($\pi$QT + K)

  Options:
  A) $\frac{S^2}{2\pi r^{2}Q}-\frac{k}{Q}$
  B) $\frac{S^2}{4\pi r^{2}Q}$ - k
  C) $\frac{S^2}{4\pi r^{2}Q}-\frac{k}{Q}$
  D) $\frac{s^2}{4\pi r^{2}Q}$
  Show Answer
  The correct answer is B .
• Question 1269:

  A binary operation $\otimes$ is defined by $m\otimes n=mn+m-n$ on the set of real numbers, for all m, n $\in$ R. Find the value of 3 $\otimes$ (2 $\otimes$ 4).

  Options:
  A) 6
  B) 25
  C) 15
  D) 18
  Show Answer
  The correct answer is C .
• Question 1270: Convert 72₆ to a number in base three Options:
  A) 2211
  B) 2121
  C) 1212
  D) 1122
  Show Answer
  The correct answer is D .