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 2191:

  

  The bar chart shows the number of times the word a, and, in, it, he, to appear in a paragraph in a book. What is the ratio of the least frequent word?

  Options:
  A) $\frac{1}{4}$
  B) $\frac{1}{3}$
  C) $\frac{2}{3}$
  D) $\frac{3}{4}$
  Show Answer
  The correct answer is A .
• Question 2192:

  The sum of the ages of Musa and Lawal is 28 years. After sharing a certain sum of money in the ratio of their ages, Musa gets ₦600 and Lawal ₦800. How old is Lawal?

  Options:
  A) 14 years
  B) 20 years
  C) 12 years
  D) 16 years
  Show Answer
  The correct answer is D .
• Question 2193: x varies directly as y and inversely as z. when x = 5, y = 2 and z = 1. What is the value of x when y = 5 and z = 2? Options:
  A) 2.5
  B) 5
  C) 6.25
  D) 6.52
  E) 7.5
  Show Answer
  The correct answer is C .
• Question 2194: Factorize completely the expression abx² + 6y - 3ax - 2byx Options:
  A) (ax - 2y)(bx - 3)
  B) (bx + 3)(2y - ax)
  C) (bx + 3)(ax - 2y)
  D) (ax - 2y)(ax - b)
  Show Answer
  The correct answer is A .
• Question 2195: 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 2196: In a basket, there are 6 grapes, 11 bananas and 13 oranges. If one fruit is chosen at random. What is the probability that the fruit is either a grape or a banana Options:
  A) ⁶/₃₀
  B) ⁵/₃₀
  C) ¹⁷/₃₀
  D) ¹¹/₃₀
  Show Answer
  The correct answer is C .
• Question 2197: Obi borrows ₦10.00 at 2% per month simple interest and repays ₦8.00 after 4 months, how much does he still owe? Options:
  A) ₦10.80
  B) ₦10.65
  C) ₦2.80
  D) ₦2.67
  Show Answer
  The correct answer is C .
• Question 2198: Given the scores: 4, 7, 8, 11, 13, 8 with corresponding frequencies: 3, 5, 2, 7, 2, 1 respectively. The mean score is Options:
  A) 7.0
  B) 8.7
  C) 9.5
  D) 11.0
  Show Answer
  The correct answer is B .
• Question 2199: Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135° Options:
  A) 271.5cm²
  B) 135.8cm²
  C) 96.0cm²
  D) 48.0cm²
  E) 33.9cm²
  Show Answer
  The correct answer is E .
• Question 2200: If x + $\frac{1}{x}$ = 4, find x² + $\frac{1}{x^2}$ Options:
  A) 16
  B) 14
  C) 12
  D) 9
  Show Answer
  The correct answer is B .