You are asked to use six different letters to make a computer password. Find the number of possible six letter passwords.
I think its Either 720 or 165765600
2 answers
It can indeed be either, depending on whether you are given a set of six letters, or allowed to choose your own six from the whole alphabet.
English alphabet has 26 letters.
If letters come from the alphabet and the password does not allow repetition of the letters and is case-insensitive, then the number of possible combinations in six letters is
26*25*24*23*22*21 = 165765600
hope this helps~ `u`
(I apologize if someone has already posted an answer/solution before me. I've got slow internet and I can't seem to post my comment right away.)
If letters come from the alphabet and the password does not allow repetition of the letters and is case-insensitive, then the number of possible combinations in six letters is
26*25*24*23*22*21 = 165765600
hope this helps~ `u`
(I apologize if someone has already posted an answer/solution before me. I've got slow internet and I can't seem to post my comment right away.)
1 answer