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 2631: Simplify $\frac{3}{x}+\frac{15}{2y}+\frac{6}{xy}$ Options:
  A) $\frac{2y-5x}{4}$
  B) $\frac{9(2x-5x)}{x^2{y}^2}$
  C) $\frac{5x-2y}{2}$
  D) $\frac{c^2{y}^2}{18y-45x}$
  E) $\frac{4}{2y-5x}$
  Show Answer
  The correct answer is A .
• Question 2632:

  The goals scored by 40 football teams from three league divisions are recorded below

  No of goals	0	1	2	3	4	5	6
  Frequency	4	3	15	16	1	0	1

  What is the total number of goals scored by all the teams?

  Options:
  A) 21
  B) 40
  C) 91
  D) 96
  Show Answer
  The correct answer is C .
• Question 2633: y = is inversely proportional to x and y = 4 when x = 1/2. Find x when y = 10. Options:
  A) 2
  B) 10
  C) 1/5
  D) 1/10
  Show Answer
  The correct answer is C .
• Question 2634: The radius of a sphere is 21cm. If s and v represent the curved surface area and volume respectively, what is s : v? (take π = 3.142) Options:
  A) 1:03
  B) 1:07
  C) 3:01
  D) 3:07
  E) 7:01
  Show Answer
  The correct answer is B .
• Question 2635: The ratio of the base area of a hollow cone to that of its curved surface is 1:4. If its base radius is 7cm, calculate the slant height of the cone Options:
  A) 7cm
  B) 22cm
  C) 28cm
  D) 49cm
  E) 154cm
  Show Answer
  The correct answer is C .
• Question 2636: Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135° Options:
  A) 271.5cm²
  B) 135.8cm²
  C) 96.0cm²
  D) 48.0cm²
  E) 33.9cm²
  Show Answer
  The correct answer is E .
• Question 2637: Evaluate $\frac{0.00000231}{0.007}$ and leave the answer in standard form Options:
  A) 3.3 x 10⁴
  B) 3.3 x 10^-3
  C) 3.3 x 10^-4
  D) 3.3 x 10^-8
  Show Answer
  The correct answer is C .
• Question 2638: The ratio of the base area of a hollow cone to that of its curved surface is 1:4. If its base radius is 7cm, calculate the slant height of the cone Options:
  A) 7cm
  B) 22cm
  C) 28cm
  D) 49cm
  E) 154cm
  Show Answer
  The correct answer is C .
• Question 2639: The ratio of the base area of a hollow cone to that of its curved surface is 1:4. If its base radius is 7cm, calculate the slant height of the cone Options:
  A) 7cm
  B) 22cm
  C) 28cm
  D) 49cm
  E) 154cm
  Show Answer
  The correct answer is C .
• Question 2640: In a racing competition, Musa covered a distance 5x km in the first hour and (x + 10)km in the next hour. He was second to Nzozi who covered a total distance of 118km in the two hours. Which of the following inequalities is correct?
  Options:
  A) -1 < x < x < 0
  B) -3 < x < 3
  C) 0 $\le$ x < 18
  D) 15 < x < 18
  Show Answer
  The correct answer is C .