SOLUTION: Find the number of ways of selecting 3 prefects in a class of 15 boys and 10 girls if one of the prefects must be a girl.

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Question 1117248: Find the number of ways of selecting 3 prefects in a class of 15 boys and 10 girls if one of the prefects must be a girl.
Answer by Alan3354(69443) About Me  (Show Source):
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Find the number of ways of selecting 3 prefects in a class of 15 boys and 10 girls if one of the prefects must be a girl.
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Exactly 1 girl?
Or at least 1 girl?
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Does that affect the answer?