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

  • question_answer
    The solution set of \[^{10}{{C}_{x-1}}>2\ .{{\ }^{10}}{{C}_{x}}\] is

    A) {1, 2, 3}

    B) {4, 5, 6}

    C) {8,9, 10}

    D) {9, 10, 11}

    Correct Answer: C

    Solution :

      It is obvious and can be checked by putting the values. Since other three sets do not hold good.


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