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 1501: Four members of a social first eleven cricket team are also members of the first fourteen rugby team. How many boys play for at least one of the two teams? Options:
  A) 25
  B) 21
  C) 16
  D) 3
  Show Answer
  The correct answer is B .
• Question 1502: W is directly proportional to U. If W = 5 when U = 3, find U when W = $\frac{2}{7}$ Options:
  A) $\frac{6}{35}$
  B) $\frac{10}{21}$
  C) $\frac{21}{10}$
  D) $\frac{35}{6}$
  Show Answer
  The correct answer is A .
• Question 1503: Find the variance of 2x, 2x-1 and 2x+1 Options:
  A) 2/3
  B) 2
  C) √(2/3)
  D) 1
  Show Answer
  The correct answer is A .
• Question 1504:

  What is the place value of 9 in the number 3.0492?

  Options:
  A) $\frac{9}{10000}$
  B) $\frac{9}{1000}$
  C) $\frac{9}{100}$
  D) $\frac{9}{10}$
  Show Answer
  The correct answer is B .
• Question 1505: A man 40m from the foot of a tower observes the angle of elevation of the tower to be 30^o, Determine the height of the tower Options:
  A) 40m
  B) 40$\sqrt{3}$m
  C) 20m
  D) $\frac{40\sqrt{3}}{3}$
  Show Answer
  The correct answer is D .
• Question 1506: A chord of circle of radius 7cm is 5cm from the centre of the maximum possible area of the square? Options:
  A) 4√6 cm
  B) 3√6 cm
  C) 6√6 cm
  D) 2√6 cm
  Show Answer
  The correct answer is A .
• Question 1507: The determinant of matrix $\left(\begin{array}{ccc}x& 1& 0\\ 1-x& 2& 3\\ 1& 1+x& 4\end{array}\right)$ in terms of x is Options:
  A) -3x² - 17
  B) -3x² + 9x - 1
  C) 3x² + 17
  D) 3x² - 9x + 5
  Show Answer
  The correct answer is B .
• Question 1508: Solve the inequality -6(x + 3) $\le$ 4(x - 2) Options:
  A) x $\le$ 2
  B) x $\ge$ -1
  C) x $\ge$ -2
  D) x $\le$ -1
  Show Answer
  The correct answer is B .
• Question 1509: Triangle OPQ above is the solution of the inequalities Options:
  A) x + 1 ≥ 0, y + x ≤ 0, y - x ≥ 0
  B) y + x ≤ 0, y - x ≥ 0, x -1 ≥ 0
  C) x - 1 ≤ 0, y - x ≥ o, y + x ≥ 0
  D) x - 1 ≤ 0, y + x ≤ 0, y - x ≤ 0
  Show Answer
  The correct answer is A .
• Question 1510:

  If a fair coin is tossed 3 times, what is the probability of getting at least two heads?

  Options:
  A) $\frac{2}{3}$
  B) $\frac{4}{5}$
  C) $\frac{2}{5}$
  D) $\frac{1}{2}$
  Show Answer
  The correct answer is D .