SOLUTION: A code consists of 3 letters. None of the letters can be repeated. How many different codes can there be?
Algebra
->
Permutations
-> SOLUTION: A code consists of 3 letters. None of the letters can be repeated. How many different codes can there be?
Log On
Algebra: Combinatorics and Permutations
Section
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on Permutations
Question 562806
:
A code consists of 3 letters. None of the letters can be repeated. How many different codes can there be?
Answer by
josmiceli(19441)
(
Show Source
):
You can
put this solution on YOUR website!
There are 26 choices for 1st letter
25 for the 2nd, 24 for the 3rd