Question

In how many ways can a password be made using 4 letters from the 26 letter English alphabet, if letters cannot be repeated?

Answer 1

I got 358,800

Explanation:

First you can choose from 26 letters, then from 25 (because you can't use the same letter) then from 24, and then from 23. You multiply 26 * 25 * 24 * 23 and you get your answer.

I think :)