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 1351: Evaluate (x + $\frac{1}{x}$ + 1)² - (x + $\frac{1}{x}$ + 1)² Options:
  A) 4x²
  B) ($\frac{2}{x}$ + 2)²
  C) 4
  D) 4(1 + x)
  Show Answer
  The correct answer is D .
• Question 1352: 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 1353:

  If $\frac{x}{a+1}$ + $\frac{y}{b}$ = 1. Make y the subject of the relation.

  Options:
  A) $\frac{b(a+1-x)}{a+1}$
  B) $\frac{a+1}{b(a-x+1)}$
  C) $\frac{a(b-x+1)}{b+1}$
  D) $\frac{b}{a(b-x+1)}$
  Show Answer
  The correct answer is A .
• Question 1354: 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 1355: Simplify $\frac{x-y}{x^{\frac{1}{3}}-x^{\frac{1}{3}}}$ Options:
  A) x² + xy + y²
  B) x^{$\frac{2}{3}$} + x ^{$\frac{1}{3}$} + y^{$\frac{2}{3}$}
  C) x^{$\frac{2}{3}$} - x^{$\frac{1}{3}$}y^{$\frac{2}{3}$}
  D) y^{$\frac{2}{3}$}
  Show Answer
  The correct answer is B .
• Question 1356: A triangle has vertices P(-1,6), Q(-3, -4) and R(1, -4).Find the midpoint of PQ and QR respectively. Options:
  A) (0,-2) and (-1, -4)
  B) (-1,0) and (-1,-1)
  C) (-2,1) and (0,1)
  D) (-2,1) and (-1,-4)
  Show Answer
  The correct answer is D .
• Question 1357: Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number Options:
  A) 2
  B) 3
  C) 4
  D) 5
  E) 6
  Show Answer
  The correct answer is B .
• Question 1358: A surveyor measured the length of a obtained 42.55 metres. If his measurement was more than the actual length and the percentage error of his measurement was 8%, calculate the actual length of the land Options:
  A) 39.40 metres
  B) 46.20 metres
  C) 46.25 metres
  D) 46.50 metres
  E) 48.25 metres
  Show Answer
  The correct answer is A .
• Question 1359:

  What is the general term of the sequence 3, 8, 13, 18, ...?

  Options:
  A) 5n - 2
  B) 5n + 2
  C) 5
  D) 5n
  Show Answer
  The correct answer is A .
• Question 1360: 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 .