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 1611: Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number Options:
  A) 2
  B) 3
  C) 4
  D) 5
  E) 6
  Show Answer
  The correct answer is B .
• Question 1612: If cos x = 4/5, 0° $\le$ x $\le$ 90°, find the value of (1 + tan x)/(1 - tan x) Options:
  A) 9
  B) 7
  C) 4
  D) $\frac{7}{16}$
  E) $\frac{9}{25}$
  Show Answer
  The correct answer is B .
• Question 1613: If x₁₀ = 23₅. Find x Options:
  A) 15
  B) 12
  C) 14
  D) 13
  Show Answer
  The correct answer is D .
• Question 1614: The seconds term of a geometric series is 4 while the fourth term is 16. Find the sum of the first five terms Options:
  A) 60
  B) 62
  C) 54
  D) 64
  Show Answer
  The correct answer is B .
• Question 1615: Simplify 52.4 - 5.7 - 3.45 - 1.75 Options:
  A) 41.4
  B) 41.5
  C) 42.1
  D) 42.2
  Show Answer
  The correct answer is B .
• Question 1616: Find the area bounded by the curve y = 3x${}^2$ - 2x + 1, the coordinates x = 1 and x = 3 and the x-axis Options:
  A) 24
  B) 22
  C) 21
  D) 20
  Show Answer
  The correct answer is D .
• Question 1617:

  

  Find the volume of the prism.

  Options:
  A) 990cm³
  B) 880cm³
  C) 550cm³
  D) 495cm³
  Show Answer
  The correct answer is D .
• Question 1618:

  Evaluate $\frac{2\sin 30+5\tan 60}{\sin 60}$, leaving your answer in surd form.

  Options:
  A) $\frac{2\sqrt{3}}{3}+10$
  B) $\frac{3\sqrt{2}-1}{5}$
  C) $\frac{3\sqrt{2}+1}{5}$
  D) $\frac{2\sqrt{3}}{3}-10$
  Show Answer
  The correct answer is A .
• Question 1619: Find the roots of the equation 10x² - 13x - 3 = 0 Options:
  A) x = $\frac{3}{5}$ or -$\frac{1}{2}$
  B) x = $\frac{3}{10}$ or -1
  C) x = $\frac{3}{10}$ or 1
  D) x = $\frac{1}{5}$ or $\frac{-3}{2}$
  E) x = -$\frac{1}{5}$ or $\frac{3}{2}$
  Show Answer
  The correct answer is E .
• Question 1620:
  

  The base in which the operation was performed was

  Options:
  A) 6
  B) 2
  C) 4
  D) 5
  Show Answer
  The correct answer is B .