Question 1143486
In how many different ways can the letters of "SUNDAY" be arranged? 
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The 1st letter is 1 of 6.
Then 1 of 5, etc.
----> 6*5*4*3*2*1 = 720 ways.
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How many of these arrangements being with an "S"?
720/6 = 120 ways.
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I was interrupted.  When I came back to finish, there were 2 other submissions already.