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 21: If x₁₀ = 1214₅ find x Options:
  A) 124
  B) 121
  C) 184
  D) 180
  Show Answer
  The correct answer is C .
• Question 22:

  Given that A = {3, 4, 1, 10, ⅓ }

  B = {4, 3 ⅓, ⅓, 7}.

  Find A∩B

  Options:
  A) {}
  B) {⅓, 1, 2}
  C) {3, 4, ⅓}
  D) {1, 3, ⅓}
  Show Answer
  The correct answer is C .
• Question 23: If y²+ 14y + k is a perfect square, then k = Options:
  A) 4
  B) 7
  C) 28
  D) 49
  E) 196
  Show Answer
  The correct answer is D .
• Question 24: 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 25: The ages of 10 students in a class are; 15, 16, 15.5, 17, 14.9, 14.5, 14.1, 15.1, 14.8. find the range of their ages. Options:
  A) 6.1
  B) 4.8
  C) 2.9
  D) 2.1
  E) 1.9
  Show Answer
  The correct answer is C .
• Question 26: If three angles of a quadrilateral are (3y - x - z)^o, 3x^o, (2z - 2y - x)^o find the fourth angle in terms of x, y and z Options:
  A) (360 - x- y - z)^o
  B) (360 + x + y - z)^o
  C) (180 - x + y + z)^o
  D) (180 - x + y + z)^o
  Show Answer
  The correct answer is A .
• Question 27: 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 28: If Q is a factor of 18 and T is prime numbers between 2 and 18. What is Q$\cap$T? Options:
  A) (2,3)
  B) (2,3,18)
  C) (2,3,9)
  D) (2,3,6)
  Show Answer
  The correct answer is A .
• Question 29: Given that 3x - 5y - 3 = 0, 2y - 6x + 5 = 0 the value of (x, y) is Options:
  A) ($\frac{-1}{8},\frac{19}{24}$)
  B) 8, $\frac{24}{19}$
  C) -8, $\frac{24}{19}$
  D) ($\frac{19}{24},\frac{-1}{8}$)
  Show Answer
  The correct answer is D .
• Question 30: If Musa scored 75 in biology instead of 57, his average mark in four subjects would have been 60. What was his total mark? Options:
  A) 282
  B) 240
  C) 222
  D) 210
  Show Answer
  The correct answer is C .