[" The number of words of four "],[" letters containing equal number "],[" of vowels and consonants,"],[" where repetition is allowed,is "]

The number of words of four letters containing equal number of vowels and consonants, repetition being allowed, is

The number of words of four letters consisting of equal number of vowels and consonants (of English Language) with repetition permitted is

The number of words of four letters consisting of equal number of vowels and consonants (of English Language) with repetition permitted is

What is the number of words formed from the letters of the word ‘JOKE’ so that the vowels and consonants alternate ?

What is the number of words formed from the letters of the word 'JOKE',so that the vowels and consonants alternate?

With 17 consonants and 5 vowels the number of words of four letters that can be formed having two different vowels in the middle and one consonant, repeated or different at each end is