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JEE MATHEMATICS MCQ: COMBINATIONS

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A person wishes to make up as many different parties as he can out of his 20 friends such that each party consists of the same number of persons. The number of friends he should invite at a time, is

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Correct option: B

10

Option B (10) is correct because the maximum number of parties is formed when the number of friends invited is half the total number of friends, which maximizes the binomial coefficient.

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