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 641: Find correct to one decimal place, 0.24633 $÷$ 0.0306 Options:
  A) 0.8
  B) 1.8
  C) 8.0
  D) 8.1
  Show Answer
  The correct answer is D .
• Question 642:

  

  The pie chart above represents 400 fruits on display n a grocery store. How many apples are in the store

  Options:
  A) 45
  B) 50
  C) 60
  D) 75
  Show Answer
  The correct answer is B .
• Question 643: 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 644: The sum of two numbers is twice their difference. If the difference of the numbers is P, find the larger of the two numbers Options:
  A) p/2
  B) 3p/2
  C) 5p/2
  D) 3p
  Show Answer
  The correct answer is B .
• Question 645: On the pie chart, there are four sectors of which three angles are 45${}^{\circ }$, 90${}^{\circ }$ and 135${}^{\circ }$. If the smallest sector represents N28.00, how much is the largest sector? Options:
  A) N96.00
  B) N84.00
  C) N48.00
  D) N42.00
  Show Answer
  The correct answer is B .
• Question 646: Obtain a maximum value of the function f(x) = x${}^3$ - 12x + 11. Options:
  A) -5
  B) -2
  C) 2
  D) 27
  Show Answer
  The correct answer is D .
• Question 647:

  A wire was shaped to form a square of area 81cm². An equilateral triangle was formed by the same wire,What is the length of a side of the triangle formed?

  Options:
  A) 3cm
  B) 6cm
  C) 9cm
  D) 12cm
  E) 27cm
  Show Answer
  The correct answer is D .
• Question 648:

  

  In the figure above, |CD| is the base of the triangle CDE. Find the area of the figure to the nearest whole number.

  Options:
  A) 56 cm${}^2$
  B) 24 cm${}^2$
  C) 42 cm${}^2$
  D) 34 cm${}^2$
  Show Answer
  The correct answer is D .
• Question 649:

  Calculate the length of an arc of a circle diameter 14 cm, which subtends an angle of 90${}^{\circ }$ at the center of the circle

  Options:
  A) 7π/2 cm
  B) 7π cm
  C) 14π cm
  D) 7π/4 cm
  Show Answer
  The correct answer is A .
• Question 650:

  How many different 8 letter words are possible using the letters of the word SYLLABUS?

  Options:
  A) (8 - 1)!
  B) $\frac{8!}{2!}$
  C) $\frac{8!}{2!2!}$
  D) 8!
  Show Answer
  The correct answer is C .