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 311:

  Make x the subject of the formula:y = $\frac{3x-9c}{4x+5d}$

  Options:
  A) x = $\frac{(-9c-5dy)}{4y-3}$
  B) x = $\frac{-9c+5dy}{4y-3}$
  C) x = $\frac{(-9c+5dy)}{4y-3}$
  D) x = $\frac{-(9c+5dy)}{4y-3}$
  Show Answer
  The correct answer is D .
• Question 312:

  Calculate the standard deviation of the following data: 7, 8, 9, 10, 11, 12, 13

  Options:
  A) 2
  B) 4
  C) 12
  D) 17
  Show Answer
  The correct answer is A .
• Question 313: Find the range of values of x for which 3x - 7 $\le$ 0 and x + 5 > 0
  Options:
  A) -5 < x < $\frac{7}{3}$
  B) -5 $\le$ x $\le$ $\frac{7}{3}$
  C) -5 < x $\le$ $\frac{7}{3}$
  D) -5 $\le$ x < $\frac{7}{3}$
  Show Answer
  The correct answer is C .
• Question 314:

  If D = $\left[\begin{array}{ccc}2& -1& 3\\ 4& 1& 2\\ 1& -3& 1\end{array}\right]$

  Find |D|

  Options:
  A) 16
  B) 14
  C) -23
  D) -37
  Show Answer
  The correct answer is C .
• Question 315: If s = (2 + 3t)(5t - 4), find $\frac{dy}{dx}$ when t = $\frac{4}{5}$ sec Options:
  A) 0 units per sec.
  B) 15 units per seconds
  C) 22 units per seconds
  D) 26 units per seconds
  Show Answer
  The correct answer is C .
• Question 316:

  Find the distance between the points (-2, -3) and (-2, 4).

  Options:
  A) 3.0m
  B) 2.4m
  C) 3.2m
  D) 7.0m
  Show Answer
  The correct answer is D .
• Question 317:

  

  PQRS is a desk of dimensions 2m $\times$ 0.8 which is inclined at 30${}^{\circ }$ to the horizontal. Find the inclination of the diagonal PR to the horizontal

  Options:
  A) 30${}^{\circ }$ 35'
  B) 30${}^{\circ }$ 32'
  C) 15${}^{\circ }$ 36'
  D) 10${}^{\circ }$
  E) 10${}^{\circ }$ 42'
  Show Answer
  The correct answer is E .
• Question 318: Find the value of log₁₀ r + log₁₀ r² + log₁₀ r⁴ + log₁₀ r⁸ + log₁₀ r¹⁶ + log₁₀ r³² = 63 Options:
  A) 10^-1
  B) 10^o
  C) 10
  D) 10²
  Show Answer
  The correct answer is C .
• Question 319: If the function y = 5x is graphed, what would be its intercept on the y-axis? Options:
  A) 5
  B) $\frac{1}{5}$
  C) 1
  D) 2
  E) zero
  Show Answer
  The correct answer is E .
• Question 320: By selling an article for ₦45.00 a man makes a profit of 80%. For how much should he have sold it in order to make a profit of 32%? Options:
  A) ₦180.00
  B) ₦59.00
  C) ₦63.00
  D) ₦58.00
  E) ₦55.00
  Show Answer
  The correct answer is E .