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 431: Find the values of x for which the expression $\frac{(x-3)(x-2)}{x^2+x-2}$ Options:
  A) 1, -2
  B) -1, 2
  C) 2, 3
  D) -1. -2
  E) -2, -3
  Show Answer
  The correct answer is A .
• Question 432:

  The time taken to do a piece of work is inversely proportional to the number of men employed. if it takes 45 men to do a piece of work in 5 days, how long will it take 25 men?

  Options:
  A) 15 days
  B) 12 days
  C) 5 days
  D) 9 days
  Show Answer
  The correct answer is D .
• Question 433: By selling 20 oranges for ₦1.35 a trader makes a profit of 8%. What is his percentage gain or loss if he sells the same 20 oranges for ₦1.10? Options:
  A) 8%
  B) 10%
  C) 12%
  D) 15%
  Show Answer
  The correct answer is C .
• Question 434: Factorize 4a² - 12ab - C² + 9b² Options:
  A) 4a(a - 3b) + (3b - c)²
  B) (2a + 3b - c)(2a + 3b + c)
  C) (2a - 3b + c)(2a - 3b - c)
  D) 4a(a - 3b) + (3b + c)
  Show Answer
  The correct answer is C .
• Question 435: A student spent $\frac{1}{5}$ of his allowances on books, $\frac{1}{3}$ of the remainder on food and kept the rest for contingences. What fraction was kept? Options:
  A) $\frac{7}{16}$
  B) $\frac{8}{15}$
  C) $\frac{2}{3}$
  D) $\frac{4}{5}$
  Show Answer
  The correct answer is B .
• Question 436: A man invests a sum of money at 4% per annum simple invest. After 3 years, the principal amounts to ₦7,000.00. Find the sum invested Options:
  A) ₦7,840
  B) ₦6,250.00
  C) ₦616.00
  D) ₦5,833.33
  Show Answer
  The correct answer is B .
• Question 437: Solve for x and y if x - y = 2 and x² - y² = 8 Options:
  A) (-1, 3)
  B) (3, 1)
  C) (-3, 1)
  D) (1, 3)
  Show Answer
  The correct answer is B .
• Question 438:

  

  From the figure above, what is the value of p?

  Options:
  A) 135${}^{\circ }$
  B) 90${}^{\circ }$
  C) 60${}^{\circ }$
  D) 45${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 439:

  

  The histogram above represents the number of candidates that sat for Mathematics examination in a school. How many candidate scored more than 50 marks?

  Options:
  A) 80
  B) 95
  C) 100
  D) 115
  Show Answer
  The correct answer is B .
• Question 440: In a right angled triangle, if tan $\theta$ = $\frac{3}{4}$. What is cos$\theta$ - sin$\theta$? Options:
  A) $\frac{2}{3}$
  B) $\frac{3}{5}$
  C) $\frac{1}{5}$
  D) $\frac{4}{5}$
  Show Answer
  The correct answer is C .