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 2551: An arc subtends an angle of 50${}^{\circ }$ at the center of circle of radius 6cm. Calculate the area of the sector formed Options:
  A) ¹⁰⁰/₇
  B) ⁸⁰/₇
  C) ¹¹⁰/₇
  D) ⁹⁰/₇
  Show Answer
  The correct answer is C .
• Question 2552:

  The second term of a geometric series is ${}^{-2}{/}_3$ and its sum to infinity is ${}^3{/}_2$. Find its common ratio.

  Options:
  A) ${}^{-1}{/}_3$
  B) 2
  C) ${}^4{/}_3$
  D) ${}^2{/}_9$
  Show Answer
  The correct answer is A .
• Question 2553: Find the standard deviation of 2, 3, 5 and 6 Options:
  A) √6
  B) √10
  C) √$\frac{2}{5}$
  D) √$\frac{5}{2}$
  Show Answer
  The correct answer is D .
• Question 2554: Find the locus of a point which moves such that its distance from the line y = 4 is a constant, k. Options:
  A) y = k + or - 4
  B) y = 4 + or - k
  C) y = 4 + k
  D) y = k - 4
  Show Answer
  The correct answer is A .
• Question 2555:

  

  In the diagram, P, Q and R are three points in a plane such that the bearing of R from Q is 110^o and the bearing of Q from P is 050^o. Find angle PQR.

  Options:
  A) 60^o
  B) 70^o
  C) 120^o
  D) 160^o
  Show Answer
  The correct answer is C .
• Question 2556: Solve for the equation $\sqrt{x}$ - $\sqrt{(x-2)}$ - 1 = 0 Options:
  A) $\frac{3}{2}$
  B) $\frac{2}{3}$
  C) $\frac{4}{9}$
  D) $\frac{9}{4}$
  Show Answer
  The correct answer is D .
• Question 2557: Simplify 2$\frac{5}{12}$ - 1$\frac{7}{8}$ x $\frac{6}{5}$ Options:
  A) $\frac{1}{6}$
  B) $\frac{13}{20}$
  C) $\frac{11}{30}$
  D) $\frac{9}{4}$
  E) $\frac{5}{3}$
  Show Answer
  The correct answer is A .
• Question 2558: If the quadratic function 3x² - 7x + R is a perfect square, find R Options:
  A) $\frac{49}{24}$
  B) $\frac{49}{12}$
  C) $\frac{49}{13}$
  D) $\frac{49}{3}$
  E) $\frac{49}{36}$
  Show Answer
  The correct answer is B .
• Question 2559:

  

  In the cyclic quadrilateral above . Find < PRO

  Options:
  A) 70^o
  B) 20^o
  C) 50^o
  D) 30^o
  Show Answer
  The correct answer is D .
• Question 2560: Express in partial fractions $\frac{11+2}{6x^2-x-1}$ Options:
  A) $\frac{1}{3x-1}$ + $\frac{3}{2x+1}$
  B) $\frac{3}{3x+1}$ - $\frac{1}{2x-1}$
  C) $\frac{3}{3x+1}$ - $\frac{1}{2x-1}$
  D) $\frac{1}{3x+1}$ + $\frac{3}{2x-1}$
  Show Answer
  The correct answer is D .