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 1: Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number Options:
  A) 2
  B) 3
  C) 4
  D) 5
  E) 6
  Show Answer
  The correct answer is B .
• Question 2: If sin θ = 4/5 where 0° ∠ θ ∠ 900, what is the value of cos θ + tan θ? Options:
  A) $\frac{14}{15}$
  B) $\frac{15}{29}$
  C) $\frac{13}{8}$
  D) $\frac{144}{15}$
  E) $\frac{24}{5}$
  Show Answer
  The correct answer is D .
• Question 3: John gives one-third of his money to Janet who has ₦105.00. He then finds that his money is reduced to one-fourth of what Janet now has. Find how much money john has at first Options:
  A) ₦45.00
  B) ₦48.00
  C) ₦52.00
  D) ₦60.00
  E) ₦52.00
  Show Answer
  The correct answer is A .
• Question 4: Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number Options:
  A) 2
  B) 3
  C) 4
  D) 5
  E) 6
  Show Answer
  The correct answer is B .
• Question 5:

  How many times, correct to the nearest whole number, will a man run round a circular track of diameter 100m to cover a distance of 1000m?

  Options:
  A) 3
  B) 4
  C) 5
  D) 6
  Show Answer
  The correct answer is B .
• Question 6: Solve the inequality y² - 3y > 18
  Options:
  A) -3 < y < 6
  B) y < -3 or y > 6
  C) y > -3 or y > 6
  D) y < 3 or y < 6
  Show Answer
  The correct answer is A .
• Question 7: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 8: Suppose x varies inversely as y, y varies directly as the square of t and x = 1, when 1 = 3. Find x when t = $\frac{1}{3}$ Options:
  A) 81
  B) 27
  C) $\frac{1}{9}$
  D) $\frac{1}{27}$
  E) $\frac{1}{81}$
  Show Answer
  The correct answer is E .
• Question 9:

  I. Rectangular bars of equal width

  II. The height of each rectangular bar is proportional to the frequency of the corresponding class interval.

  III. Rectangular bars have common sides with no gaps in between

  A histogram is described completely by

  Options:
  A) I, II and III
  B) I and II
  C) II and III
  D) I and III
  Show Answer
  The correct answer is A .
• Question 10:

  If (x - a) is a factor of bx - ax + x², find the other factor.

  Options:
  A) (x + b)
  B) (x - b)
  C) (a + b)
  D) (a - b)
  Show Answer
  The correct answer is A .