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 681:

  A crate of soft drinks contains 10 bottle of Coca-Cola 8 of Fanta and 6 of Sprite. If one bottle is selected at random, whatis the probability that it is Not a Coca-Cola bottle?

  Options:
  A) $\frac{5}{12}$
  B) $\frac{1}{3}$
  C) $\frac{3}{4}$
  D) $\frac{7}{12}$
  Show Answer
  The correct answer is D .
• Question 682: The sum of two numbers is 5; their product is 14. Find the numbers. Options:
  A) x = 5 or 1
  B) x = 7 or 1
  C) x = 7 or 0
  D) x = 7 or − 2
  Show Answer
  The correct answer is D .
• Question 683: Factorize 2y² - 15xy + 18x² Options:
  A) (2y - 3x) (y + 6x)
  B) (2y - 3x) (y - 6x)
  C) (2y + 3x) (y - 6x)
  D) (3y + 2x) (y - 6x)
  Show Answer
  The correct answer is B .
• Question 684: The positive root of t in the following equation, 4t² + 7t - 1$\pi$ = 0, correct to 4 places of decimal, is Options:
  A) 1.0622
  B) 10.6225
  C) 0.1328
  D) 0.3218
  E) 2.0132
  Show Answer
  The correct answer is C .
• Question 685:

  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 686: In a recent zonal championship games involving 10 teams, teams X and Y were given probabilities $\frac{2}{5}$ and $\frac{1}{3}$ respectively of winning the gold in the football event. What is the probability that either team will win the gold? Options:
  A) $\frac{2}{15}$
  B) $\frac{7}{15}$
  C) $\frac{11}{15}$
  D) $\frac{13}{15}$
  Show Answer
  The correct answer is C .
• Question 687: A bag contains 4 white balls and 6 red balls. Two balls are taken from the bag without replacement. What is the probability that they are both red? Options:
  A) $\frac{2}{3}$
  B) $\frac{2}{15}$
  C) $\frac{1}{2}$
  D) $\frac{1}{3}$
  Show Answer
  The correct answer is D .
• Question 688: If P = $\frac{2}{3}$ ($\frac{1-r^2}{n^2}$), find n when r = $\frac{1}{3}$ and p = 1 Options:
  A) $\frac{3}{2}$
  B) $\frac{1}{3}$
  C) 3
  D) $\frac{2}{3}$
  Show Answer
  The correct answer is D .
• Question 689: What is the mean of the data t, 2t - 1, t - 2, 2t - 1, 4t and 2t + 2? Options:
  A) 2t
  B) 2t - 1
  C) $\frac{2}{3}$t + 1
  D) 2t - $\frac{1}{3}$
  Show Answer
  The correct answer is D .
• Question 690: Simplify 1 - (7/3 x 5/4) + 2/5 Options:
  A) -16/15
  B) -79/60
  C) -37/15
  D) -151/60
  Show Answer
  The correct answer is B .