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 351: If p : q = $\frac{2}{3}$ : $\frac{5}{6}$ and q : r = $\frac{3}{4}$ : $\frac{1}{2}$, find p : q : r Options:
  A) 12 : 15 : 10
  B) 12 : 15 : 16
  C) 10 : 15 : 24
  D) 9 : 10 : 15
  Show Answer
  The correct answer is A .
• Question 352: If tan $\theta$ = $\frac{m^2-n^2}{2mn}$ find sec$\theta$ Options:
  A) $\frac{m^2+n^2}{(m^2-n^2)}$
  B) $\frac{m^2+n^2}{2mn}$
  C) $\frac{mn}{2(m^2+n^2)}$
  D) $\frac{m^2{n}^2}{2(m^2-n^2)}$
  Show Answer
  The correct answer is B .
• Question 353: Find $\frac{dy}{dx}$. If y = 3x³ + 2x² + 3x + 1 Options:
  A) 9x² + 4x + 3
  B) 9x² - 4x - 3
  C) 9x² + 4x - 3
  D) 9x² - 4x + 3
  Show Answer
  The correct answer is A .
• Question 354: Write the decimal number 39 to base 2 Options:
  A) 10011 base 2
  B) 110111 base 2
  C) 111001 base 2
  D) 100101 base 2
  E) 19.5 base 2
  Show Answer
  The correct answer is A .
• Question 355: Find the mean of the data: 7, -3, 4, -2, 5, -9, 4, 8, -6, 12 Options:
  A) 3
  B) 4
  C) 1
  D) 2
  Show Answer
  The correct answer is D .
• Question 356: A banking recipe calls for 2.5kg of sugar and 4.5kg of flour. With this recipe some cakes were baked Using 24.5kg of a mixture of sugar and flour. How much sugar was used? Options:
  A) 12.25kg
  B) 6.75kg
  C) 8.75kg
  D) 15.75kg
  E) 8.25kg
  Show Answer
  The correct answer is C .
• Question 357: Simplify $\frac{1}{x^2+5x+6}$ + $\frac{1}{x^2+3x+2}$ Options:
  A) $\frac{x}{(x+2)(x-3)}$
  B) $\frac{2}{(x+5)(x-3)}$
  C) $\frac{2}{(x+1)(x+3)}$
  D) $\frac{2}{(x-1)(x-3)}$
  Show Answer
  The correct answer is C .
• Question 358: Make S the subject of the relation
  p = s + $\frac{s{m}^2}{nr}$ Options:
  A) s = $\frac{nrp}{nr+m^2}$
  B) s = nr + $\frac{m^2}{mrp}$
  C) s = $\frac{nrp}{mr}$ + m²
  D) s = $\frac{nrp}{nr}$ + m²
  Show Answer
  The correct answer is D .
• Question 359: The variance of the scores 1, 2, 3, 4, 5 is Options:
  A) 1.25
  B) 1.40
  C) 2.05
  D) 3.00
  Show Answer
  The correct answer is C .
• Question 360: Calculate 3310₅ - 1442₅ Options:
  A) 1313₅
  B) 2131₅
  C) 4302₅
  D) 1103₅
  Show Answer
  The correct answer is A .