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 871: The sum of 3$\frac{7}{8}$ and 1$\frac{1}{3}$ is less than the difference between $\frac{3}{8}$ and 1$\frac{2}{3}$ by: Options:
  A) 3$\frac{2}{3}$
  B) 5$\frac{1}{4}$
  C) 6$\frac{1}{2}$
  D) 8
  E) 8$\frac{1}{8}$
  Show Answer
  The correct answer is C .
• Question 872: A straight lie y = mx meets the curve y = x² - 12x + 40 in two distinct points. If one of them is (5, 5) find the other Options:
  A) (5, 6)
  B) (8, 8)
  C) (8, 5)
  D) (7,7)
  E) (7, 5)
  Show Answer
  The correct answer is E .
• Question 873:

  $\frac{d}{dx}[\log (4x^3-2x)]$ is equal to

  Options:
  A) $\frac{12x-2}{4x^2}$
  B) $\frac{43x^2-2x}{7x}$
  C) $\frac{4x^2-2}{7x+6}$
  D) $\frac{12x^2-2}{4x^3-2x}$
  Show Answer
  The correct answer is D .
• Question 874: Simplify $\frac{x^2-1}{x^3+2x^2-x-2}$ Options:
  A) $\frac{1}{x+2}$
  B) $\frac{x-1}{x+1}$
  C) $\frac{x-1}{x+2}$
  D) $\frac{1}{x-2}$
  Show Answer
  The correct answer is A .
• Question 875: The vectors a and b are given in terms of two perpendicular units vectors i and j on a plane by a = 2i - 3j, b = -i + 2j. Find the magnitude of the vector a + 3b Options:
  A) 2
  B) 4
  C) $\sqrt{10}$
  D) 35
  E) 2.2
  Show Answer
  The correct answer is C .
• Question 876: If 0.0000152 x 0.042 = A x 10⁸, where 1 $\le$ A < 10, find A and B. Options:
  A) A = 9, B = 6.38
  B) A = 6.38, B = -9
  C) A = -6.38, B = -9
  D) A = -9, B = -6.38
  Show Answer
  The correct answer is B .
• Question 877: Solve the equation cos x + sin x $\frac{1}{cosx-sinx}$ for values of such that 0 $\le$ x < 2$\pi$. Options:
  A) $\frac{\pi }{2}$, $\frac{3\pi }{2}$
  B) $\frac{\pi }{3}$, $\frac{2\pi }{3}$
  C) 0, $\frac{\pi }{3}$
  D) 0, $\pi$
  Show Answer
  The correct answer is D .
• Question 878: Evaluate [$\frac{1}{0.03}$ $÷$ $\frac{1}{0.024}$]^-1 correct to 2 decimal places Options:
  A) 3.76
  B) 1.25
  C) 0.94
  D) 0.75
  Show Answer
  The correct answer is B .
• Question 879:

  

  (Numbers indicate the lengths of the sides of the triangles) If the area of $△$ PQR is k²sq. units what is the area of the shades portion?

  Options:
  A) $\frac{5}{9}$k² sq. units
  B) $\frac{1}{3}$k² sq. units
  C) $\frac{8}{9}$k² sq. units
  D) $\frac{7}{9}$k² sq. units
  E) $\frac{2}{3}$k² sq. u
  Show Answer
  The correct answer is A .
• Question 880: Simplify 4$\frac{3}{4}$ - 6$\frac{1}{4}$ Options:
  A) -7$\frac{7}{8}$
  B) $\frac{-2}{7}$
  C) $\frac{-10}{21}$
  D) $\frac{10}{21}$
  Show Answer
  The correct answer is B .