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JEE Main & Advanced Mathematics Permutations and Combinations Question Bank Self Evaluation Test - Permutations and Combinatioins

  • question_answer
    Total number of words that can be formed using all letters of the word FAILIRE which neither begin with F nor end with E is equal to

    A) 3720

    B) 5040

    C) 3600    

    D) 3480

    Correct Answer: A

    Solution :

    [a] Total number of words \[=7!\] Out of which 6! Start with F and 6! And with e., while 5! Start with F and end with E.


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