1. ## Couting Techniques

How many distinct Permutations of the letters of the word OTTAWA begin and end with the letter T?

2. Originally Posted by wikji
How many distinct Permutations of the letters of the word OTTAWA begin and end with the letter T?

This is the same as asking how many distinct permutations are there of the
letters OAWA.

If all the letters were distinct there would be 4! such permutations, but in this
case this will count each permutation twice as there are 2! permuutations of
the A's counted for each distinct perm of the letters.

RonL

3. ## around

Originally Posted by wikji
How many distinct Permutations of the letters of the word OTTAWA begin and end with the letter T?
around 10

4. Originally Posted by lorenzolama
around 10
Around 10 is not an adequate answer. If you don't know how to do the problem but want more help than given ask, otherwise remain silent if you
have nothing useful to say.

RonL