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[" 12.Let "S={1,2,3,......,9}." For "k=1...

[" 12.Let "S={1,2,3,......,9}." For "k=1,2,......,5," let "N," be the number of subsets of S,each containing "],[" five elements out of which exactly "k" are odd.Then "N_(1)+N_(2)+N_(3)+N_(4)+N_(5)=],[quad " [JEE(Advanced)-2017,3(-1)] "]

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