getzperez6532 getzperez6532

14-03-2018
Mathematics

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How many different arrangements of 55 letters can be formed if the first letter must be w or k (repeats of letters are allowed)?

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sqdancefan sqdancefan

16-03-2018

If the remaining 4 letters can be anything, you have 2*26^4 = 913,952 possible 5-letter ham radio call signs.

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