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 851: The inverse function f(x) = 3x + 4 is Options:
  A) (x-4)/3
  B) (x-5)/5
  C) (x+3)/4
  D) (x+4)/3
  Show Answer
  The correct answer is A .
• Question 852: The ratio of the base area of a hollow cone to that of its curved surface is 1:4. If its base radius is 7cm, calculate the slant height of the cone Options:
  A) 7cm
  B) 22cm
  C) 28cm
  D) 49cm
  E) 154cm
  Show Answer
  The correct answer is C .
• Question 853: If S = $\sqrt{t^2-4t+4}$, find t in terms of S Options:
  A) S² - 2
  B) S + 2
  C) S - 2
  D) S² + 2
  Show Answer
  The correct answer is B .
• Question 854: In a soccer competition in one season, a club had scored the following goals: 2, 0, 3, 3, 2, 1, 4, 0, 0, 5, 1, 0, 2, 2, 1, 3, 1, 4, 1 and 1. The mean, median and mode are respectively Options:
  A) 1, 1.8 and 1.5
  B) 1.8, 1.5 and 1
  C) 1.8, 1 and 1.5
  D) 1.51, 1 and 1.8
  E) 1.5, 1.8 and 1
  Show Answer
  The correct answer is B .
• Question 855:

  Evaluate $(\frac{6}{0.32}÷\frac{2}{0.084}{)}^{-1}$ correct to 1 decimal place.

  Options:
  A) 1.3
  B) 2.5
  C) 4.6
  D) 3.2
  Show Answer
  The correct answer is A .
• Question 856: The chances of Usman and Dele passing a Mathematics test are 12 and 13 respectively. What is the probability that neither of them passes the test? Options:
  A) $\frac{3}{5}$
  B) $\frac{2}{5}$
  C) $\frac{4}{15}$
  D) $\frac{1}{5}$
  E) $\frac{2}{15}$
  Show Answer
  The correct answer is C .
• Question 857:

  ⊗	k	l	m
  k	l	m	k
  l	m	k	l
  m	k	l	m

  The identity element with respect to the multiplication shown in the table above is

  Options:
  A) o
  B) m
  C) l
  D) k
  Show Answer
  The correct answer is B .
• Question 858: An arc of the length 16$\pi$cm subtends an angle of 80^o at the centre of the circle. Find the radius of the circle. Options:
  A) 24cm
  B) 28cm
  C) 36cm
  D) 32cm
  Show Answer
  The correct answer is C .
• Question 859: A cinema halll contains a certain number of people. If 25/2% are children, 95/2% are men and 84 are women, find the number of men in the hall. Options:
  A) 63
  B) 84
  C) 113
  D) 133
  Show Answer
  The correct answer is D .
• Question 860: The ratio of the base area of a hollow cone to that of its curved surface is 1:4. If its base radius is 7cm, calculate the slant height of the cone Options:
  A) 7cm
  B) 22cm
  C) 28cm
  D) 49cm
  E) 154cm
  Show Answer
  The correct answer is C .