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 2201: In how many ways can a delegation of 3 be chosen from 5 men and 3 women. If at least 1 man and 1 woman must be included? Options:
  A) 15
  B) 28
  C) 30
  D) 45
  Show Answer
  The correct answer is D .
• Question 2202: Differentiate (cos θ - sin θ)² Options:
  A) -2 cos 2θ
  B) -2 sin2θ
  C) 1 - 2 cos 2θ
  D) 1 - 2 sin 2θ
  Show Answer
  The correct answer is A .
• Question 2203: What is the perpendicular distance of a point (2, 3) from the line 2x - 4y + 3 = 0? Options:
  A) $\frac{\sqrt{5}}{2}$
  B) $\frac{\sqrt{5}}{20}$
  C) $\frac{5}{\sqrt{13}}$
  D) 6
  Show Answer
  The correct answer is A .
• Question 2204: Find the value of X if $\frac{\sqrt{2}}{x+\sqrt{2}}=\frac{1}{x-\sqrt{2}}$ Options:
  A) 3√2+4
  B) 3√2-4
  C) 3-2√2
  D) 4+2√2
  Show Answer
  The correct answer is A .
• Question 2205: If x + $\frac{1}{x}$ = 4, find x² + $\frac{1}{x^2}$ Options:
  A) 16
  B) 14
  C) 12
  D) 9
  Show Answer
  The correct answer is B .
• Question 2206: The mean of ten positive numbers is 16. When another number is added, the mean becomes 18. Find the eleventh number Options:
  A) 3
  B) 16
  C) 18
  D) 38
  Show Answer
  The correct answer is D .
• Question 2207:

  

  The farm yield of four crops on a piece of land in Ondo are represented on the pie chart. what is the angle of the sector occupies by Okro in the chart?

  Options:
  A) 11${}^{\circ }$
  B) 19$\frac{1}{3}$${}^{\circ }$
  C) 33$\frac{1}{3}$${}^{\circ }$
  D) 91$\frac{1}{3}$${}^{\circ }$
  E) 91${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 2208: Find the positive value of x if the standard deviation of the numbers 1, x + 1 is 6 Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is C .
• Question 2209: If U and V are two distinct fixed points and W is a variable points such that UWV is a right angle, what is the locus of W? Options:
  A) The perpendicular bisector of UV
  B) A circle with UV as radius
  C) A line parallel to the line UV
  D) A circle with the line UV as the diameter
  Show Answer
  The correct answer is D .
• Question 2210: If cos$\theta$ = $\frac{a}{b}$, find 1 + tan²$\theta$ Options:
  A) $\frac{b^2}{a^2}$
  B) $\frac{a^2}{b^2}$
  C) $\frac{a^2+b^2}{b^2-a^2}$
  D) $\frac{2a^2+b^2}{a^2+b^2}$
  Show Answer
  The correct answer is A .