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 231: Integral ∫$(5x^3+7x^2-2x+5)$dx Options:
  A) $\frac{5x^4}{4}+\frac{7x^3}{3}+2x+C$
  B) $\frac{5x}{4}+\frac{7x^3}{3}-x^2+5x+C$
  C) $\frac{5x^3}{3}+\frac{7x^2}{x}-x+C$
  D) $\frac{2x^2}{3}+\frac{x}{5}-C$
  Show Answer
  The correct answer is B .
• Question 232: Convert 27₁₀ to another number in base three Options:
  A) 1001₃
  B) 1010₃
  C) 1100₃
  D) 1000₃
  Show Answer
  The correct answer is D .
• Question 233: Find the range of the value of x satisfying the inequalities 5 + x $\le$ 8 and 13 + x $\ge$ 7 Options:
  A) -3 $\le$ x $\le$ 3
  B) 3 $\le$ x $\le$ 6
  C) -6 $\le$ x $\le$ 3
  D) -6 $\le$ x $\le$ -3
  Show Answer
  The correct answer is C .
• Question 234:

  

  Find the value of x in the diagram.

  Options:
  A) 50^o
  B) 60^o
  C) 70^o
  D) 80^o
  Show Answer
  The correct answer is C .
• Question 235: Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135° Options:
  A) 271.5cm²
  B) 135.8cm²
  C) 96.0cm²
  D) 48.0cm²
  E) 33.9cm²
  Show Answer
  The correct answer is E .
• Question 236: If m $\ast$ n = n-(m + 2) for any real numbers m and n, find the value of 3 $\ast$ (-5) Options:
  A) -6
  B) -8
  C) -10
  D) -12
  Show Answer
  The correct answer is C .
• Question 237: 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 238: Find a two-digit number such that three times the tens digit is 2 less than twice the units digit, and twice the number is 20 greater than the number obtained by reversing the digits. Options:
  A) 24
  B) 42
  C) 74
  D) 47
  E) 72
  Show Answer
  The correct answer is D .
• Question 239: 4sin² x - 3 = 0, find x if 0 $\ge$ x $\ge$ 90^o Options:
  A) 30^o
  B) 45^o
  C) 60^o
  D) 9^o
  Show Answer
  The correct answer is C .
• Question 240: 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 .