Hey I need help with this seemingly easy question with arranging letters:
Q1) How Many ten-letter words can be formed from the letters of PARRAMATTA? How many nine-letter words? How many 8-letter words?
Thanks
The very first result from google is
this
It gives the equation $\displaystyle \frac{n!}{n_1!n_2!...n_k!}$ where $\displaystyle n$ is the length of the word, $\displaystyle n_1$ is the number of times the first letter is in the word, and so on...
So for PARRAMATTA its $\displaystyle \frac{10!}{4!2!2!}$