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 1131: S_n is the sum of the first n terms of a series given by S_n = n₂n - 1. Find the nth term Options:
  A) 4n + 1
  B) 4n - 1
  C) 2n + 1
  D) 2n - 1
  Show Answer
  The correct answer is D .
• Question 1132: In 1984, Ike was 24 yrs old and his father was 45 yrs old. In what year was Ike exactly half his father's age? Options:
  A) 1981
  B) 1979
  C) 1982
  D) 1978
  Show Answer
  The correct answer is A .
• Question 1133:

  How many sides has a regular polygon whose interior angles are 120° each?

  Options:
  A) 4
  B) 5
  C) 6
  D) 3
  Show Answer
  The correct answer is C .
• Question 1134: If U = {x : x is an integer and 1 $\le$ x $\le$ 20
  E₁ = {x : x is a multiple of 3}
  E₂ = {x : x is a multiple of 4}
  and an integer is picked at random from U, find the probability that it is not in E₂ Options:
  A) 3/4
  B) 3/10
  C) 1/4
  D) 1/20
  Show Answer
  The correct answer is A .
• Question 1135:

  The angle of a sector of s circle, radius 10.5cm, is 48^o. Calculate the perimeter of the sector.

  Options:
  A) 28.8cm
  B) 25.4cm
  C) 25.6cm
  D) 29.8cm
  Show Answer
  The correct answer is D .
• Question 1136: Two variables x and y are such that $\frac{dy}{dx}$ = 4x - 3 and y = 5 when x = 2. Find y in terms of x Options:
  A) 2x² - 3x + 5
  B) 2x² - 3x + 3
  C) 2x² - 3x
  D) 4
  Show Answer
  The correct answer is B .
• Question 1137: If 314₁₀ - 256₇ = 340_x, find x. Options:
  A) 7
  B) 8
  C) 9
  D) 10
  Show Answer
  The correct answer is A .
• Question 1138: A tax player is allowed $\frac{1}{8}$th of his income tax-free, and pays 20% on the remainder. If he pays ₦490.00 tax, what is his income? Options:
  A) ₦560.00
  B) ₦2,450.00
  C) ₦2,800.00
  D) ₦3,920.00
  Show Answer
  The correct answer is C .
• Question 1139: Find the equation of the line through the points (-2, 1) and (-$\frac{1}{2}$, 4) Options:
  A) y = 2x - 3
  B) y = 2x + 5
  C) y = 3x - 2
  D) y = 2x + 1
  Show Answer
  The correct answer is B .
• Question 1140: Find the dimensions of a rectangle of greatest area which has a fixed perimeter p. Options:
  A) square of sides p
  B) square of sides 2p
  C) square of sides (p/2)
  D) square of sides (p/4)
  Show Answer
  The correct answer is D .