20 boys and 40 girls are in Group A, while at least 7 boys,
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14 Jun 2021, 07:26
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20 boys and 40 girls are in Group A, while at least 7 boys, together with some girls are in Group B. To choose one person from each of the group, the probability that both are boys is no greater than 1/15. Which of the following statements must be true?
Indicate all such statements.
A) The number of people in group B is greater than 34.
B) The number of girls in group B is greater than 32.
C) The number of girl in group B is less than 34.