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 1341: If duty is levied at 25%, find the duty to be added to a bill of ₦80. Options:
  A) ₦100
  B) ₦20
  C) ₦80
  D) ₦150
  Show Answer
  The correct answer is B .
• Question 1342: If 3x - $\frac{1}{4}$^{-$\frac{1}{2}$} > $\frac{1}{4}$ - x, then the interval of values of x is
  Options:
  A) x > $\frac{1}{3}$
  B) x < $\frac{1}{3}$
  C) x < $\frac{1}{4}$
  D) x < $\frac{9}{16}$
  E) x > $\frac{9}{16}$
  Show Answer
  The correct answer is E .
• Question 1343:

  Determine the maximum value of y=3x${}^2$ + 5x - 3

  Options:
  A) 6
  B) 0
  C) 2
  D) No correct option
  Show Answer
  The correct answer is D .
• Question 1344: Find the maximum value of y in the equation y = 1 - 2x - 3x² Options:
  A) 5/4
  B) 5/3
  C) 3/4
  D) 4/3
  Show Answer
  The correct answer is D .
• Question 1345:

  $\frac{\frac{2}{3}÷\frac{4}{5}}{\frac{1}{4}+\frac{3}{5}-\frac{1}{3}}$

  Options:
  A) $\frac{31}{50}$
  B) $\frac{20}{31}$
  C) $\frac{31}{20}$
  D) $\frac{50}{31}$
  Show Answer
  The correct answer is D .
• Question 1346:

  

  The figure represents the graphs of y = x(2 - x) and y = (x - 1)(x - 3). What are the x-coordinates of P, Q and F respectively?

  Options:
  A) 1, 3, 2
  B) 0, 0, 0
  C) 0, 2, 3
  D) 1, 2, 3
  Show Answer
  The correct answer is D .
• Question 1347: Some white balls put in a basket containing twelve red balls and sixteen black balls. If the probability of picking a white balls from the baskets is 3/7, how many white balls were introduced? Options:
  A) 12
  B) 21
  C) 28
  D) 32
  Show Answer
  The correct answer is B .
• Question 1348: x varies directly as y and inversely as z. when x = 5, y = 2 and z = 1. What is the value of x when y = 5 and z = 2? Options:
  A) 2.5
  B) 5
  C) 6.25
  D) 6.52
  E) 7.5
  Show Answer
  The correct answer is C .
• Question 1349: Find the mean of 10, 8, 5, 11, 12, 9, 6, 3, 15, and 23. Options:
  A) 11.2
  B) 10
  C) 10.2
  D) 11.3
  Show Answer
  The correct answer is C .
• Question 1350: 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 .