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JEE Main & Advanced Mathematics Permutations and Combinations Question Bank Multinomial Theorem, Number of Divisors, Miscellaneous problems

  • question_answer
    If  \[^{n}{{P}_{3}}{{+}^{n}}{{C}_{n-2}}=14n\], then \[n=\]

    A) 5

    B) 6

    C) 8

    D) 10

    Correct Answer: A

    Solution :

      By inspection\[n=5\].


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