kelsiemiller kelsiemiller

05-06-2018
Mathematics

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how many arangments of letters in PARALLEL

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sqdancefan sqdancefan

10-06-2018

There are 8! ways to arrange the 8 letters. Due to the repeated L (3×) and A (2×), only one out of (2!)(3!) = 12 of these is unique.

The number of unique arrangements is 8!/(2!*3!) = 3,360

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