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Permutations And Combinations

Question

A cricket team of 11 players is to be constituted with at least 5 players from class XI and 5 from class XII. In how many ways can this be done if each class has 20 students?

Solution

Solution not provided.
Ans. $2 space left parenthesis straight C presuperscript 20 subscript 5 cross times straight C presuperscript 20 subscript 6 right parenthesis$

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Permutations And Combinations

A cricket team of 11 players is to be constituted with at least 5 players from class XI and 5 from class XII. In how many ways can this be done if each class has 20 students?

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