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 181: One of the following statements is wrong. Which is it? Options:
  A) If a triangle is equiangular then it is also equilateral
  B) If a triangle is equilateral then it is also then it is also equiangular
  C) If two triangles are similar then they are also congurent
  D) The sum of the interior angles of any triangle is 180 degrees
  Show Answer
  The correct answer is C .
• Question 182: Express the product of 0.21 and 0.34 in standard form Options:
  A) 7.14 x 10^-3
  B) 7.14 x 10^-2
  C) 7.14 x 10^-1
  D) 7.14 x 10^-4
  Show Answer
  The correct answer is B .
• Question 183: Integrate $\frac{1}{x}$ + cos x with respect to x Options:
  A) -$\frac{1}{x^2}$ + sin x + k
  B) x + sin x - k
  C) x - sin x + k
  D) -$\frac{1}{x^2}$ - sin x + k
  Show Answer
  The correct answer is C .
• Question 184:

  PQRS is a cyclic quadrilateral with PQ as diameter of the circle. If < PQS = 15^o, find < QRS

  Options:
  A) 75^o
  B) 37$\frac{1}{2}$^o
  C) 127$\frac{1}{2}$^o
  D) 105^o
  Show Answer
  The correct answer is D .
• Question 185:

  Age in years	7	8	9	10	11
  No of pupils	4	13	30	44	9

  The table above shows the number of pupils in a class with respect to their ages. If a pie chart is constructed to represent the age, the angle corresponding to 8 years old is

  Options:
  A) 48.6°
  B) 56.3°
  C) 46.8°
  D) 13°
  Show Answer
  The correct answer is C .
• Question 186: If s = (2 + 3t)(5t - 4), find $\frac{dy}{dx}$ when t = $\frac{4}{5}$ sec Options:
  A) 0 units per sec.
  B) 15 units per seconds
  C) 22 units per seconds
  D) 26 units per seconds
  Show Answer
  The correct answer is C .
• Question 187: Find the total surface area of solid cone of radius 2$\sqrt{3}$cm and slanting side 4$\sqrt{3}$ Options:
  A) 8$\sqrt{3}\pi$cm²
  B) 24$\pi$cm²
  C) 15$\sqrt{3}\pi$cm²
  D) 36$\pi$cm²
  Show Answer
  The correct answer is D .
• Question 188: The radius of a circle is given as 5cm subject to an error of 0.1cm. What is the percentage error in the area of the circle? Options:
  A) $\frac{1}{25}$
  B) $\frac{1}{4}$
  C) 4
  D) 25
  Show Answer
  The correct answer is C .
• Question 189: From a point Z, 60 m north of X, a man walks 60√3m eastwards to another point Y. Find the bearing of Y from X. Options:
  A) 0.30^o
  B) 045^o
  C) 060^o
  D) 090^o
  Show Answer
  The correct answer is C .
• Question 190: If U = (s, p, i, e, n, d, o, u, r), X = (s, p, e, n, d) Y = (s, e, n, o, u), Z = (p, n, o, u, r) find X ∩ Y ∪ Z Options:
  A) (p, o, u, r)
  B) (s, p, d, r)
  C) (p, n, d)
  D) (n, d, u)
  Show Answer
  The correct answer is C .