SOLUTION: what is the number of distinguishable permutations of the letters in the word invertebrate

SOLUTION: what is the number of distinguishable permutations of the letters in the word invertebrate

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Question 1157283: what is the number of distinguishable permutations of the letters in the word invertebrate
Answer by greenestamps(13203) (Show Source): You can put this solution on YOUR website!

12 letters total; 3 e's, 2 r's and 2 t's:

By a well-known basic counting principle, the number of distinguishable arrangements is

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