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October 21, 2014

October 21, 2014

Posted by **Twg** on Wednesday, August 12, 2009 at 12:24am.

sent with these flags, taken 4 at a time?

- MATH Prob. -
**Reiny**, Wednesday, August 12, 2009 at 9:09amIf a flag can be used more than once in a signal, the number would be 10x10x10x10 = 10000

If a flag can be used only once, the number is

10x9x8x7 = 5040

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