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OpenStudy (anonymous):
find the number of distinguishable permutations of the letters LUCKY.
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OpenStudy (anonymous):
how did you get that?
OpenStudy (anonymous):
which of course does not mean the answer is emphatically 5 but means \[5!=5\times 4\times 3\times2\]
OpenStudy (anonymous):
5 choices for first letter 4 choices for second 3 choices for third 2 choices for 4th 1 choice for last counting principle says number of way to do this together is the product of the number of ways to do each one
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