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 1731: If p : q = $\frac{2}{3}$ : $\frac{5}{6}$ and q : r = $\frac{3}{4}$ : $\frac{1}{2}$, find p : q : r Options:
  A) 12 : 15 : 10
  B) 12 : 15 : 16
  C) 10 : 15 : 24
  D) 9 : 10 : 15
  Show Answer
  The correct answer is A .
• Question 1732:

  $\begin{array}{cccc}\text{Age in years}& 10& 11& 12\\ \text{No. of pupils}& 6& 27& 7\end{array}$

  The table above shows the number of pupil in each age group in a class. What is the probability that a pupil chosen at random is at least 11 years old?

  Options:
  A) $\frac{27}{40}$
  B) $\frac{3}{30}$
  C) $\frac{17}{20}$
  D) $\frac{33}{40}$
  Show Answer
  The correct answer is C .
• Question 1733: Find the volume of solid generated when the area enclosed by y = 0, y = 2x, and x = 3 is rotated about the x-axis. Options:
  A) 81 π cubic units
  B) 36 π cubic units
  C) 18 π cubic units
  D) 9 π cubic units
  Show Answer
  The correct answer is B .
• Question 1734: A bag contains 5 black, 4 white and x red marbles. If the probability of picking a red marble is ²/₃, find the value of x Options:
  A) 8
  B) 10
  C) 4
  D) 6
  Show Answer
  The correct answer is D .
• Question 1735: x varies directly as y and inversely as z. when x = 5, y = 2 and z = 1. What is the value of x when y = 5 and z = 2? Options:
  A) 2.5
  B) 5
  C) 6.25
  D) 6.52
  E) 7.5
  Show Answer
  The correct answer is C .
• Question 1736: A father is now three times as old as his son. Twelve years ago he was six times as old as his son. How old are the son and the father? Options:
  A) 20 and 45
  B) 100 and 150
  C) 45 and 65
  D) 35 and 75
  E) 20 and 60
  Show Answer
  The correct answer is E .
• Question 1737: A ship sails a distance of 50km in the direction S50°E and then sails a distance of 50km in the direction ₦40°E. FInd the bearing of the ship from the original position. Options:
  A) S90°E
  B) ₦40°E
  C) S95°E
  D) ₦85°E
  Show Answer
  The correct answer is D .
• Question 1738: The ages of 10 students in a class are; 15, 16, 15.5, 17, 14.9, 14.5, 14.1, 15.1, 14.8. find the range of their ages. Options:
  A) 6.1
  B) 4.8
  C) 2.9
  D) 2.1
  E) 1.9
  Show Answer
  The correct answer is C .
• Question 1739: Simplify 4$\frac{3}{4}$ - 6$\frac{1}{4}$ Options:
  A) -7$\frac{7}{8}$
  B) $\frac{-2}{7}$
  C) $\frac{-10}{21}$
  D) $\frac{10}{21}$
  Show Answer
  The correct answer is B .
• Question 1740: 2 bags of sugar at N_x per bag are mixed with 3 bags of sugar at N_y per bag. What is the cost in N of the mixture per bag? Options:
  A) $\frac{(2x+3y)}{5}$
  B) $\frac{(x+y)}{2}$
  C) $\frac{x}{2}+\frac{y}{3}$
  D) $\frac{(x+y)}{5}$
  E) $\frac{(3x+2y)}{5}$
  Show Answer
  The correct answer is A .