SOLUTION: How many arrangements of the word ECONOMICS begins with the letter C?

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Question 1117681: How many arrangements of the word ECONOMICS begins with the letter C?
Answer by Edwin McCravy(20055)   (Show Source): You can put this solution on YOUR website!
If we take one of the C's out of "ECONOMICS" and place it first, we 
have the letters of "EONOMICS" left to write after the C.  So  the 
number of arrangements of "EONOMICS" that we can place after the 
first letter C is 8!/2! = 20160 arrangements.  The 8 is because 
"EONOMICS" has 8 letters and the 2 is because it contains two 
indistinguishable O's.

Edwin
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