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Thread: distinct permutations

  1. August 7th 2012, 04:48 AM #1
    mathewnaren
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    distinct permutations

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  2. August 8th 2012, 05:14 AM #2
    JohnDMalcolm
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    Re: distinct permutations

    The number of permutations of N objects is N!. But say r of the objects are indistinguishable, then the number of distinct permutations become \frac{N!}{r!}. Suppose that there are r indistinguishable objects of one kind and s of another. Then the number of distinct permutations is \frac{N!}{r!s!}.
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  3. August 11th 2012, 06:06 AM #3
    mathewnaren
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    Re: distinct permutations

    Pls someone give me the answer for the question
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  4. August 11th 2012, 06:37 AM #4
    Plato
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    Re: distinct permutations

    Quote Originally Posted by mathewnaren View Post
    Pls someone give me the answer for the question
    B
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