JEE Main & Advanced Mathematics Permutations and Combinations Question Bank Definition of combinations, Conditional combinations, Division into groups, Derangements

  • question_answer
    Out of 6 books, in how many ways can a set of one or more books be chosen [MP PET 1984]

    A) 64

    B) 63

    C) 62

    D) 65

    Correct Answer: B

    Solution :

     Required number of ways \[{{A}_{10}}\].


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