SOLUTION: How many different arrangements are there of the letters of the word SITTING? How many of these arrangements start with a repeated letter?

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Question 750303: How many different arrangements are there of the letters of the word SITTING? How many of these arrangements start with a repeated letter?
Answer by dkppathak(439) About Me  (Show Source):
You can put this solution on YOUR website!
total arrangement will be = 7 factorial/2factorialx2factorial=245
arrangement start with I =5 FACTORIAL/2FACTORIAL=60
ARRANGEMENT START WITH T= 5 FACTORIAL/2 FACTORIAL =60