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 91:

  

  In the diagram, POS and ROT are straight lines, OPQR is a parallelogram. |OS| = |OT| and ∠OST = 50^o. Calculate ∠OPQ.

  Options:
  A) 160^o
  B) 140^o
  C) 120^o
  D) 100^o
  Show Answer
  The correct answer is D .
• Question 92:

  If 2${}^{x+y}$ = 16 and 4${}^{x-y}=\frac{1}{32}$, find the values of x and y.

  Options:
  A) x = $\frac{3}{4}$, y = $\frac{11}{4}$
  B) x = $\frac{3}{4}$, y = $\frac{13}{4}$
  C) x = $\frac{2}{3}$, y = $\frac{4}{5}$
  D) x = $\frac{2}{3}$, y = $\frac{13}{4}$
  Show Answer
  The correct answer is B .
• Question 93:

  Convert 0.04945 to two significant figures

  Options:
  A) 0.040
  B) 0.049
  C) 0.050
  D) 0.49
  Show Answer
  The correct answer is B .
• Question 94:

  

  In the diagram, EFGH is a cyclic quadrilateral in which EH || FG, EG and FH are chords. If < FHG = 424${}^{\circ }$ and < EFH = 34${}^{\circ }$

  Options:
  A) 34${}^{\circ }$
  B) 42${}^{\circ }$
  C) 52${}^{\circ }$
  D) 76${}^{\circ }$
  Show Answer
  The correct answer is C .
• Question 95: If g(x) = x² + 3x + 4, find g(x + 1) - g(x) Options:
  A) (x + 2)
  B) 2(x + 2)
  C) (2x + 1)
  D) (x² + 4)
  Show Answer
  The correct answer is B .
• Question 96: Solve the quadratic inequality x² - 5x + 6 $\ge$ 0 Options:
  A) x $\le$ 2, x $\ge$ 3
  B) x $\le$ 3, x $\ge$ 2
  C) x $\le$ -2, x $\ge$ -3
  D) x $\le$ -3,x $\ge$ 2
  Show Answer
  The correct answer is A .
• Question 97: calculate the simple interest on N6,500 for 8 years at 5% per annum. Options:
  A) N3,000
  B) N600
  C) N300
  D) N150
  Show Answer
  The correct answer is A .
• Question 98: Factorize r² - r(2p + q) + 2pq Options:
  A) (r - 2q)(2r - p)
  B) (r - p)(r + p0
  C) (r - q)(r - 2p)
  D) (2r - q)(r + p)
  Show Answer
  The correct answer is C .
• Question 99:

  A rectangle has one side that is 6 cm shorter than the other. The area of the rectangle will increase by 68 cm${}^2$ if we add 2 cm to each side of the rectangle. Find the length of the shorter side.

  Options:
  A) 15 cm
  B) 19 cm
  C) 13 cm
  D) 21 cm
  Show Answer
  The correct answer is C .
• Question 100: If $\frac{1+\sqrt{2}}{1-\sqrt{2}}$ is expressed in the form of x+y√2 find the values of x and y Options:
  A) (-3, -2)
  B) (-2, 3)
  C) (3,2)
  D) (2,-3)
  Show Answer
  The correct answer is A .