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 761: If (25)^{x - 1} = 64($\frac{5}{2}$)⁶, then x has the value Options:
  A) 7
  B) 4
  C) 32
  D) 64
  E) 5
  Show Answer
  The correct answer is B .
• Question 762: Find the two values of y which satisfy the simultaneous equation 3x + y = 8, x² + xy = 6 Options:
  A) -1 and 5
  B) -5 and 1
  C) 1 and 5
  D) 1 and 1
  Show Answer
  The correct answer is A .
• Question 763:

  A binary operation $\oplus$ on real numbers is defined by x $\oplus$ y = xy + x + y for any two real numbers x and y. The value of (-$\frac{3}{4}$) $\oplus$ 6 is

  Options:
  A) -$\frac{3}{4}$
  B) $\frac{45}{4}$
  C) -$\frac{4}{3}$
  D) $\frac{3}{4}$
  Show Answer
  The correct answer is A .
• Question 764: Simplify log¹⁰ a^{$\frac{1}{3}$} + $\frac{1}{4}$log₁₀ a - $\frac{1}{12}$log₁₀a⁷ Options:
  A) 1
  B) $\frac{7}{6}$log₁₀ a
  C) zero
  D) 10
  Show Answer
  The correct answer is C .
• Question 765: The sum of the first n positive integers is Options:
  A) $\frac{1}{2}$(n + 1)
  B) n $\frac{1}{2}$(n + 1)
  C) n(n - 1)
  D) n(n + 1)
  Show Answer
  The correct answer is B .
• Question 766: (1.28 x 10⁴) + (6.4 x 10²) equals Options:
  A) 2 x 10^-5
  B) 2 x 10^-1
  C) 2 x 10¹
  D) 2 x 10^-4
  Show Answer
  The correct answer is C .
• Question 767: Raial has 7 different posters to be hanged in her bedroom, living room and kitchen. Assuming she has plans to place at least a poster in each of the 3 rooms, how many choices does she have? Options:
  A) 49
  B) 170
  C) 21
  D) 210
  Show Answer
  The correct answer is D .
• Question 768:

  Find the derivative of y = ( $\frac{1}{3}$x + 6)

  Options:
  A) 2( $\frac{1}{3}$x + 6
  B) $\frac{2}{3}$ ( $\frac{1}{3}$x + 6)
  C) $\frac{2}{3}$ ( $\frac{1}{3}$x + 6)²
  D) $\frac{1}{3}$ ( $\frac{1}{3}$x + 6)²
  Show Answer
  The correct answer is B .
• Question 769: Evaluate x²(x² - 1)^{-$\frac{1}{2}$} - (x² - 1)^{$\frac{1}{2}$} Options:
  A) (x² - 1)^{-$\frac{1}{2}$}
  B) (x² - 1)¹
  C) (x² - 1)
  D) (x² - 1)^-1
  Show Answer
  The correct answer is A .
• Question 770:

  Let '*' and '^' be two binary operations such that a * b = a${}^2$b and a ^ b = 2a + b. Find (-4 * 2) ^ (7 * -1).

  Options:
  A) -49
  B) 64
  C) 113
  D) 15
  Show Answer
  The correct answer is D .