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 1471: Find the angle of the sectors representing each item in pie chart of the following data 6, 10, 14, 16, 26 Options:
  A) 15^o, 25^o, 35^o, 40^o, 65^o
  B) 60^o, 100^o, 140^o, 160^o, 260^o
  C) 6^o, 10^o, 14^o, 16^o, 26^o
  D) 30^o, 50^o, 70^o, 80^o, 130^o
  E) none of the above
  Show Answer
  The correct answer is D .
• Question 1472: If the variance of 3+x, 6, 4, x and 7-x is 4 and the mean is 5, find the standard deviation Options:
  A) $\sqrt{3}$
  B) 2
  C) 3
  D) $\sqrt{2}$
  Show Answer
  The correct answer is B .
• Question 1473: Determine the value of ${\int }_0^{\frac{\pi }{2}}$ (-2 cosx)dx Options:
  A) -$\frac{3}{2}$
  B) -$\frac{1}{2}$
  C) -2
  D) -3
  Show Answer
  The correct answer is C .
• Question 1474:

  The angle of a sector of a circle radius 10.5 cm is 48${}^o$. Calculate the perimeter of the sector.

  Options:
  A) 25.4cm
  B) 25.4cm
  C) 25.6cm
  D) 29.8cm
  Show Answer
  The correct answer is D .
• Question 1475: Simplify ($\sqrt{2}+\frac{1}{\sqrt{3}})(\sqrt{2}-\frac{1}{\sqrt{3}}$) Options:
  A) $\frac{7}{3}$
  B) $\frac{5}{3}$
  C) $\frac{5}{2}$
  D) $\frac{3}{2}$
  Show Answer
  The correct answer is B .
• Question 1476: A student has 5 courses to take from Mathematics and physics. There are 4 courses in Mathematics and 3 in Physics which he can choose his courses so that he takes exactly two courses in Physics? Options:
  A) 48
  B) 12
  C) 10
  D) 7
  Show Answer
  The correct answer is B .
• Question 1477: The determination of the matrix $\left(\begin{array}{ccc}1& 3& 3\\ 4& 5& 6\\ 2& 0& 1\end{array}\right)$ is Options:
  A) -67
  B) -57
  C) -3
  D) 3
  Show Answer
  The correct answer is D .
• Question 1478: If the mean of the numbers 0, (x+2), (3x+6), and (4x+8) is 4, find their mean deviation. Options:
  A) zero
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is C .
• Question 1479: If 3^2y + 6(3^y) = 27. Find y Options:
  A) 3
  B) -1
  C) 2
  D) -3
  E) 1
  Show Answer
  The correct answer is E .
• Question 1480: If the lines 2y - kx + 2 = 0 and y + x - $\frac{k}{2}$ = 0 intersect at (1, 2), find the value of k Options:
  A) -2
  B) -4
  C) -1
  D) -3
  Show Answer
  The correct answer is A .