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 1301: 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 1302: 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 1303:

  Find the sum to infinity of the following sequence: $1,\frac{9}{10},(\frac{9}{10}{)}^2,(\frac{9}{10}{)}^3,...$

  Options:
  A) $\frac{1}{10}$
  B) $\frac{9}{10}$
  C) $\frac{10}{9}$
  D) 10
  Show Answer
  The correct answer is D .
• Question 1304: Evaluate [$\frac{1}{0.03}$ $÷$ $\frac{1}{0.024}$]^-1 correct to 2 decimal places Options:
  A) 3.76
  B) 1.25
  C) 0.94
  D) 0.75
  Show Answer
  The correct answer is B .
• Question 1305:

  If sinθ = - $\frac{3}{5}$ andθ lies in the third quadrant, find cosθ

  Options:
  A) $\frac{4}{5}$
  B) - $\frac{5}{4}$
  C) $\frac{5}{4}$
  D) - $\frac{4}{5}$
  Show Answer
  The correct answer is D .
• Question 1306: If x + $\frac{1}{x}$ = 4, find x² + $\frac{1}{x^2}$ Options:
  A) 16
  B) 14
  C) 12
  D) 9
  Show Answer
  The correct answer is B .
• Question 1307: find the mean deviation of 1, 2, 3 and 4 Options:
  A) 2.5
  B) 2.0
  C) 1.0
  D) 1.5
  Show Answer
  The correct answer is C .
• Question 1308: 2x² + 11x² + 17x + 6 by 2x + 1 Options:
  A) x² + 5x + 6
  B) 2x² + 5x - 6
  C) 2x² + 5x + 6
  D) x² - 5x + 6
  Show Answer
  The correct answer is A .
• Question 1309: The chances of Usman and Dele passing a Mathematics test are 12 and 13 respectively. What is the probability that neither of them passes the test? Options:
  A) $\frac{3}{5}$
  B) $\frac{2}{5}$
  C) $\frac{4}{15}$
  D) $\frac{1}{5}$
  E) $\frac{2}{15}$
  Show Answer
  The correct answer is C .
• Question 1310: Twice a number, x, is added to 5, the result is at least 11. What is the range of values of x?
  Options:
  A) x > 3
  B) x ≥ 3
  C) x ≤ 3
  D) x < 3
  E) x ≤ -3
  Show Answer
  The correct answer is B .