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 871: Twice a number, x, is added to 5, the result is at least 11. What is the range of values of x?
  Options:
  A) x > 3
  B) x ≥ 3
  C) x ≤ 3
  D) x < 3
  E) x ≤ -3
  Show Answer
  The correct answer is B .
• Question 872: If x - 4 is a factor of x² - x - k, then k is Options:
  A) 4
  B) 12
  C) 20
  D) 2
  Show Answer
  The correct answer is B .
• Question 873:

  Find the equation of the line through the points (5, 7) parallel to the line 7x + 5y = 12.

  Options:
  A) 5x + 7y = 120
  B) 7x + 5y = 70
  C) x + y = 7
  D) 15x + 17y = 90
  Show Answer
  The correct answer is B .
• Question 874:

  A bricklayer charges ₦1,500 per day for himself and ₦500 per day for his assistant. If a two bedroom flat was built for ₦95,000 and the bricklayer worked 10 days more than his assistant, how much did the assistant receive?

  Options:
  A) N20,000
  B) N28,000
  C) N31,200
  D) N41,000
  Show Answer
  The correct answer is A .
• Question 875:

  

  In $△$XYZ, determine the cosine of angle Z.

  Options:
  A) $\frac{3}{39}$
  B) $\frac{29}{36}$
  C) $\frac{14}{5}$
  D) $\frac{7}{5}$
  Show Answer
  The correct answer is B .
• Question 876: Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and boys was 2950, find y. Options:
  A) 51
  B) 48
  C) 30
  D) 25
  E) 18
  Show Answer
  The correct answer is C .
• Question 877: 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 878:

  If $\frac{2\sqrt{3}-\sqrt{2}}{\sqrt{3}+2\sqrt{2}}$ = m + n √ 6, find the values of m and n respectively.

  Options:
  A) 1, − 2
  B) − 2, n = 1
  C) $\frac{-2}{5}$, 1
  D) $\frac{2}{3}$
  Show Answer
  The correct answer is B .
• Question 879: If ⁿP₃ - 6(ⁿC₄) = 0, find the value of n Options:
  A) 5
  B) 6
  C) 7
  D) 8
  Show Answer
  The correct answer is C .
• Question 880: Evaluate ∫sin 3x dx Options:
  A) (2/3) cos 3x + c
  B) (1/3) cos 3x + c
  C) (-1/3) cos 3x + c
  D) (-2/3) cos 3x + c
  Show Answer
  The correct answer is C .