# How many ways can the letters P Q C N Z be arranged to make a password?

##### 1 Answer

Assuming that the password is exactly 5 characters in length, and that the characters cannot be repeated, the answers is all the possible permutations of the given letters

#### Explanation:

We have 5 different possibilities for the first letter in the password, and once we have selected the first, since we cannot repeat any letter, we have 4 possibilities for the second. So, if the password has only 2 letters, we have