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Determine the number of ways to arrange the letters of the word PROOF.

 Mar 27, 2020
 #1
avatar+111330 
+1

Identifiable  ways   =

 

   5!

_____  =     120  / 2     =   60

   2!

 

 

cool cool cool

 Mar 27, 2020
 #2
avatar+1970 
-1

Nice! 

 

Since two of the words are repeated out of 5 words, it WILL be 5!/2!

CalTheGreat  Mar 27, 2020

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