How many ways can you arrange the letters in this word?
It's just like books -- 6 letters...
But, what if some letters are repeated?
What about this word?
The problem is that these letters are the same. So, we can't tell the difference between these two arrangements:
which O is which O?
The answer is that it doesn't matter!
So, when we figure this guy out, we have to divide out that double "O" problem.
Check it out:
To arrange 6 letters is 6!
To arrange the two O's would be 2!
So, the number of ways to arrange the letters in