How many words of 4 different letters can be formed out of 7 capital letters, 3 vowels and 5 consonants if each word starts with a capital letter and contains atleast 1 vowel?

Question

anonymous · Answer

not clear is it since we don't know if the capitals are consonants or vowels or mixed.  weird problem

anonymous · Answer

A capitol letter can be either a vowel or a consonant.

anonymous · Answer

you can consider capital letters as symbols.

anonymous · Answer

So does the requirement of 1 vowel include the possibility for the capitol letter to be a vowel, or not?

anonymous · Answer

Are you familiar with the permutation formula?

anonymous · Answer

There is no relation of a symbol with vowels and consonants. All of the 3 are different types with no relation between them.

anonymous · Answer

How many ways can you pick the first letter first of all?

anonymous · Answer

in 7 ways

anonymous · Answer

well..i tried to solve it like by total words starting with capital minus words starting with capital containing no vowels.