Problem Solving (PS) | Re: Alice makes 2-digit codes using the 26 letters of the alphabet. Letter

Two ways...
First the better approach..
Total ways =26*26=676
Ways both are consonants = 21*21=441..
Atleast one vowel = 676-441=235

Second approach..
Ways both are vowels = 5*5=25
Ways one is consonant and one vowel = 21*5=105
These can be placed in two ways... CV or VC, so 105*2=210
Total = 25+210=235.

A....