2498. In the group of 10 boys and 19 girls. You need to

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2498. In the group of 10 boys and 19 girls. You need to choose a delegation of two people. What is the probability that with a random choice will be elected: a) two young men, b) two girls, c) a girl and a young man.

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Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)

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