I want to choose a license plate which is 3 characters long, where the first character is a letter, the last character is a digit, and the middle is either a letter or a digit. I also want there to be two characters on my license plate which are the same. How many ways are there for me to choose a license plate with these restrictions?

Guest Sep 2, 2018

#1**+1 **

I want to choose a license plate which is 3 characters long, where the first character is a letter, the last character is a digit, and the middle is either a letter or a digit. I also want there to be two characters on my license plate which are the same. How many ways are there for me to choose a license plate with these restrictions?

There are 10 digits and 26 letters

you either have

LLD or LDD

LLD 26*1*10=260

LDD 26*10*1=260

Total of 520 ways.

Melody Sep 3, 2018