Question

If a "word" is interpreted to be a sequence of letters, how many five-letter words with no repeated letters contain two vowels? (Note that y is not considered a vowel.)
Help please =)

Answer 1

You can start by choosing where you want the vowels. And the multiply that by the number of choices for each space. i.e. 21 choices for the first consonant --> 21 __ __ __ __