what is the total number of diffreent seven letter agreements that can be formed usinng the letters "MILLION"?

possible answers: 30, 210, 1260, 2520.

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- Jun 12th 2008, 05:28 PMlionalmore help on the math final review please
what is the total number of diffreent seven letter agreements that can be formed usinng the letters "MILLION"?

possible answers: 30, 210, 1260, 2520. - Jun 12th 2008, 05:50 PMgalactus
There are 7 letters which can be arranged in 7! ways.

But, we have repeats. There are 2 L's and 2 I's

So, we divide by the number of repeats.

$\displaystyle \frac{7!}{2!2!}=\frac{5040}{4}$ - Jun 12th 2008, 05:50 PMTheEmptySet