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 881: Mohammed is 8 years older than Joy now. In five years’ time he will be twice as old as Joy. How old is Joy now? Options:
  A) 1$\frac{1}{2}$years
  B) 3years
  C) 4$\frac{1}{2}$years
  D) 6 years
  E) 8 years
  Show Answer
  The correct answer is B .
• Question 882:

  

  In the figure above, |CD| is the base of the triangle CDE. Find the area of the figure to the nearest whole number.

  Options:
  A) 56 cm${}^2$
  B) 24 cm${}^2$
  C) 42 cm${}^2$
  D) 34 cm${}^2$
  Show Answer
  The correct answer is D .
• Question 883: Find the sum to infinity of the following series. 0.5 + 0.05 + 0.005 + 0.0005 + ..... Options:
  A) $\frac{5}{8}$
  B) $\frac{5}{7}$
  C) $\frac{5}{11}$
  D) $\frac{5}{9}$
  Show Answer
  The correct answer is D .
• Question 884: The sum of the first n positive integers is Options:
  A) $\frac{1}{2}$(n + 1)
  B) n $\frac{1}{2}$(n + 1)
  C) n(n - 1)
  D) n(n + 1)
  Show Answer
  The correct answer is B .
• Question 885:

  If 1011₂ + x₇ = 25₁₀, solve for X.

  Options:
  A) 20₇
  B) 14₇
  C) 20₇
  D) 24₇
  Show Answer
  The correct answer is A .
• Question 886: If x - 4 is a factor of x² - x - k, then k is Options:
  A) 4
  B) 12
  C) 20
  D) 2
  Show Answer
  The correct answer is B .
• Question 887:

  

  The bar chart shows the distribution of marks scored by 60 pupils in a test in which the maximum score was 10. If the pass mark was 5, what percentage of the pupils failed the test?

  Options:
  A) 59.4%
  B) 50.0%
  C) 41.7%
  D) 25.0%
  Show Answer
  The correct answer is C .
• Question 888: Find the surface area of a sphere whose radius is 3.5cm, correct your answer to one decimal place (π = $\frac{22}{5}$) Options:
  A) 12.8cm²
  B) 25.7cm²
  C) 77.0cm²
  D) 154.0cm²
  E) 179.7cm²
  Show Answer
  The correct answer is D .
• Question 889: Find the derivative of $y=\frac{x^7-x^5}{x^4}$ Options:
  A) x(x²-1)
  B) 3x(x²-1)
  C) 3x²-1
  D) 7x⁶-5x⁴
  Show Answer
  The correct answer is C .
• Question 890: In one and a half hours, the minute hand of a clock rotates through an angle of Options:
  A) 90^o
  B) 180^o
  C) 640^o
  D) 450^o
  E) 540^o
  Show Answer
  The correct answer is E .