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How do I find the total possible combinations of words from ...

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Kerry Lord

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Feb 29, 2000, 3:00:00 AM2/29/00
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How do I find the total possible combinations of words from ...

Using the 5 vowels (AEIOU) how many possible words can I get from 4
consonents (2 of which are the same?

Example:

B H H G


How would I figure this out mathematically?

Thanks so much for any and all help!

Please respond via email!

Piotr Zielinski

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Feb 29, 2000, 3:00:00 AM2/29/00
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Kerry Lord <kl...@oklord.com> wrote

>
> How do I find the total possible combinations of words from ...
>
> Using the 5 vowels (AEIOU) how many possible words can I get from 4
> consonents (2 of which are the same?
>
> Example:
>
> B H H G
>
> How would I figure this out mathematically?
>

If you're interested in ANY combination, the answer is:
1*2*...*9/2 = 9! / 2

But if vowels and consonents have to be interleft (v c v c v c v c v), the
answer is:

5! * 4! /2

Piotr

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