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 1161: If U = (1, 2, 3, 6, 7, 8, 9, 10) is the universal set. E = (10, 4, 6, 8, 10) and F = is odd. Find (E ∩ F), where means x 1x² = 2⁶, x the complement of a set Options:
  A) (0)
  B) U
  C) (8)
  D) $\varphi$
  Show Answer
  The correct answer is D .
• Question 1162: 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 1163: Simplify $\frac{1}{1+\sqrt{5}}$ - $\frac{1}{1-\sqrt{5}}$ Options:
  A) - $\frac{1}{2}\sqrt{5}$
  B) $\frac{1}{2}\sqrt{5}$
  C) -- $\frac{1}{4}\sqrt{5}$
  D) 5
  Show Answer
  The correct answer is A .
• Question 1164:

  

  If K is a constant, which of the following equations best describes the parabola?

  Options:
  A) y = kx²
  B) x = y² - k
  C) y = k - x²
  D) x² = y² - k
  E) y = (k - x)²
  Show Answer
  The correct answer is B .
• Question 1165: 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 1166: The ratio of the base area of a hollow cone to that of its curved surface is 1:4. If its base radius is 7cm, calculate the slant height of the cone Options:
  A) 7cm
  B) 22cm
  C) 28cm
  D) 49cm
  E) 154cm
  Show Answer
  The correct answer is C .
• Question 1167: In how many ways can 6 subjects be selected from 10 subjects for an examination Options:
  A) 218
  B) 216
  C) 215
  D) 210
  Show Answer
  The correct answer is D .
• Question 1168: Find the acute angle between the straight lines y = x and y = $\sqrt{3x}$ Options:
  A) 15^o
  B) 30^o
  C) 45^o
  D) 60^o
  Show Answer
  The correct answer is B .
• Question 1169: Simplify $\sqrt{48}$ - $\frac{9}{\sqrt{3}}$ + $\sqrt{75}$ Options:
  A) 5√3
  B) 6√3
  C) 8√3
  D) 18√3
  Show Answer
  The correct answer is B .
• Question 1170:

  $\begin{array}{ccccccc}\text{Marks}& 3& 4& 5& 6& 7& 8\\ \text{Frequency}& 5& y-1& y& 9& 4& 1\end{array}$

  The table above gives the frequency distribution of marks obtained by a group of students in a test. If the total mark scored is 200, the value of y is

  Options:
  A) 11
  B) 15
  C) 9
  D) 13
  Show Answer
  The correct answer is A .