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 241: In one and a half hours, the minute hand of a clock rotates through an angle of Options:
  A) 90^o
  B) 180^o
  C) 640^o
  D) 450^o
  E) 540^o
  Show Answer
  The correct answer is E .
• Question 242: If x + $\frac{1}{x}$ = 4, find x² + $\frac{1}{x^2}$ Options:
  A) 16
  B) 14
  C) 12
  D) 9
  Show Answer
  The correct answer is B .
• Question 243: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 244: A chord drawn 5 cm away from the center of a circle of radius 13 cm. Calculate the length of the chord Options:
  A) 7cm
  B) 9cm
  C) 12cm
  D) 24cm
  Show Answer
  The correct answer is D .
• Question 245:

  If $f(x)=3x^3+4x^2+x-8$, what is the value of f(-2)?

  Options:
  A) -24
  B) 30
  C) -18
  D) -50
  Show Answer
  The correct answer is C .
• Question 246:

  Simplify $(\sqrt[3]{64a^3}{)}^{-1}$

  Options:
  A) 4a
  B) 1/8a
  C) 8a
  D) 1/4a
  Show Answer
  The correct answer is D .
• Question 247: 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 248: What is the value of x satisfying the equation $\frac{4^{2x}}{4^{3x}}$ = 2? Options:
  A) -2
  B) -$\frac{1}{2}$
  C) $\frac{1}{2}$
  D) 2
  Show Answer
  The correct answer is B .
• Question 249:

  

  In the diagram above, |PQ| = |QR|, |PS| = |RS|, ∠PSR = 30^o and ∠PQR = 80^o. Find ∠SPQ.

  Options:
  A) 15^o
  B) 25^o
  C) 40^o
  D) 50^o
  E) 55^o
  Show Answer
  The correct answer is B .
• Question 250: What is the length of an arc of a circle that substends 2$\frac{1}{2}$ radians at the centre when the raduis of the circle = $\frac{k}{k+1}$ + $\frac{k+1}{k}$ then
  Options:
  A) p< 0
  B) p$\ge$ 0
  C) p $\le$ 0
  D) p < 1
  E) p > 0
  Show Answer
  The correct answer is E .