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 41:
  

  Use the quadratic equation curve to answer this question.

  What is the 80th percentile?

  Options:
  A) -5.3
  B) 0.5
  C) 3
  D) 8
  Show Answer
  The correct answer is A .
• Question 42:

  Evaluate $\frac{{27}^{\frac{1}{3}}-8^{\frac{2}{3}}}{{16}^{\frac{2}{4}}\times 2}$

  Options:
  A) $\frac{23}{5}$
  B) -$\frac{23}{5}$
  C) $\frac{1}{8}$
  D) $\frac{21}{7}$
  Show Answer
  The correct answer is C .
• Question 43:

  If 1011₂ + x₇ = 25₁₀, solve for X.

  Options:
  A) 20₇
  B) 14₇
  C) 20₇
  D) 24₇
  Show Answer
  The correct answer is A .
• Question 44: If log₃x² = -8, what is x? Options:
  A) $\frac{1}{3}$
  B) $\frac{1}{9}$
  C) $\frac{1}{27}$
  D) $\frac{1}{81}$
  Show Answer
  The correct answer is D .
• Question 45: If 6log_x2 - 3log_x3 = 3log₅0.2, find x. Options:
  A) 8/3
  B) 4/3
  C) 3/4
  D) 3/8
  Show Answer
  The correct answer is C .
• Question 46:

  Factorize $a^2-b^2-4a+4$

  Options:
  A) (a + b)(a − b)
  B) (a − 2 + b)(a − 2 − b)
  C) (a + 1)(a − 2 + b)
  D) (a + b)²
  Show Answer
  The correct answer is B .
• Question 47:

  Calculate the area of an equilateral triangle of side 8cm

  Options:
  A) 8√3
  B) 16
  C) 4√3
  D) 16√3
  Show Answer
  The correct answer is D .
• Question 48: A man 40m from the foot of a tower observes the angle of elevation of the tower to be 30^o, Determine the height of the tower Options:
  A) 40m
  B) 40$\sqrt{3}$m
  C) 20m
  D) $\frac{40\sqrt{3}}{3}$
  Show Answer
  The correct answer is D .
• Question 49: Three boys shared some oranges. The first received ¹/₃ of the oranges and the second received ²/₃ of the remaining. If the third boy received the remaining 12 oranges, how many oranges did they share Options:
  A) 60
  B) 54
  C) 48
  D) 42
  Show Answer
  The correct answer is B .
• Question 50:

  

  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 .