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Soren426 Soren426
  • 16-12-2016
  • Mathematics
Answered

How many different arrangements of the letters in the word "eyes" are there?

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  • 16-12-2016

It's a combination,
there are 2 "e" s, 1"y", and 1"s"
there are 4 letters in total
if there weren't repeats you could write 4! (4321)
but since the "e"s repeat you have to write it 

4!/2! which equals 4321/2*1 so 12

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