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377

Q:

A school has 45% girls. If 80% of girls score more than 75% marks and 70% of the boys have score more than 75% marks. If a student is selected at random and is found to have more than 75% marks, find the probability of it being a boy.

  • 1
    77/149
  • 2
    75/149
  • 3
    Cannot be determined
  • 4
    11/20
  • 5
    9/20
  • Show Answer
  • Workspace

Answer : 1. "77/149"

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