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Combinatorics
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In a group of 10 people, how many ways can you select a committee of 5 people?
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A
252
💡 Explanation:
This is a combination problem. The formula for combinations is C(n, r) = n! / (n - r)!. In this case, n = 10 and r = 5, so C(10, 5) = 10! / (10 - 5)! = 10! / 5! = 252.