There are 8 boys and 4 girls in a lift. What is the probability that

MATHEMATICS
WAEC 2019

There are 8 boys and 4 girls in a lift. What is the probability that the first person who steps out of the lift will be a boy?

  • A. \(\frac{1}{6}\)
  • B. \(\frac{1}{4}\)
  • C. \(\frac{2}{3}\)
  • D. \(\frac{1}{2}\)

Correct Answer: C. \(\frac{2}{3}\)

Explanation

Total number of people in the lift = 8 boys + 4 girls

= 12 people

probability that a boy comes out = \(\frac{8}{12}\) = \(\frac{2}{3}\)



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