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 471: Two ladders of length 5m and 7m lean against a pole and make angles 45° and 60° with the ground respectively. What is their distance apart on the pole correct to two decimal places? Options:
  A) 9.60m
  B) 6.06m
  C) 2.54m
  D) 2.53m
  E) 2.00m
  Show Answer
  The correct answer is D .
• Question 472: Substract 16418₉ from 18630₉ Options:
  A) 1121₉
  B) 2112₉
  C) 2113₉
  D) 2211₉
  Show Answer
  The correct answer is D .
• Question 473: A binary operation θ defined on the set of real number is such that xθy = xy/6 for all x, y ∈ R. Find the inverse of 20 under this operation when the identity element is 6 Options:
  A) ¹/₁₂
  B) ¹⁰/₃
  C) ¹/₂₀
  D) ⁹/₅
  Show Answer
  The correct answer is D .
• Question 474:

  Find the value of k in the equation: $\sqrt{28}+\sqrt{112}-\sqrt{k}=\sqrt{175}$

  Options:
  A) $\sqrt{28}$
  B) 7
  C) 28
  D) $\sqrt{7}$
  Show Answer
  The correct answer is B .
• Question 475: What is the value of r if the distance between the point (4,2) and (1,r) is 3 units? Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is B .
• Question 476:

  If (x - a) is a factor of bx - ax + x², find the other factor.

  Options:
  A) (x + b)
  B) (x - b)
  C) (a + b)
  D) (a - b)
  Show Answer
  The correct answer is A .
• Question 477: Find x if 132_x = 70 _eight. Options:
  A) 5
  B) 3
  C) 6
  D) 1
  Show Answer
  The correct answer is C .
• Question 478: Which of the following lines is not parallel to the line 3y + 2x + 7 = 0? Options:
  A) 3y + 2x - 7 = 0
  B) 9y + 6x + 17 = 0
  C) 24y + 16x + 19 = 0
  D) 3y - 2x + 7 = 0
  E) 5y + 10x - 13 = 0
  Show Answer
  The correct answer is D .
• Question 479: Of the nine hundred students admitted in a university in 1979, the following was the distribution by state: Anambrs 185, Imo 135, Kaduna 90, Kwara 110, Ondo 155, Oyo 225. In a pie chart drawn to represent this distribution, The angle subtended at the centre by anambra is Options:
  A) 50^o
  B) 65^o
  C) 74^o
  D) 88^o
  Show Answer
  The correct answer is C .
• Question 480: Simplify 3 log₆9 + log₆12 + log₆64 - log₆72 Options:
  A) 5
  B) 7776
  C) log₆31
  D) (7776)₆
  Show Answer
  The correct answer is A .