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A school committee consists of 4 girls and 6 boys. How many girls should be added to the committee so that the probability of choosing a student from the committee at random and choosing a girl is 70%?
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A school committee consists of 4 girls and 6 boys. How many girls should be added to the committee so that the probability of choosing a student from the committee at random and choosing a girl is 70%?

User Padmalcom
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6.5k points

1 Answer

8 votes
An important fact that would help you with this is knowing that
70% = 3/4


User Nglauber
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