Out of six consonants and four vowels, how many words each containing 3 consonants and 2 vowels can be formed?

Out of 7 consonants and 4 vowels, how many words can be made each containing 3 consonants and 2 vowels ?

The English alphabet has 5 vowels and 21 consonants. How many words with two different vowels and 2 different consonants can be formed from the alphabet ?

In how many ways can 3 people be seated in a row containing 7 seats ?

How many words, with or without meaning, each of 2 vowels and 3 consonants can be formed from the letters of the word DAUGHTER ?

How many words, with or without meaning, each of 2 vowels and 3 consonants, can be formed from the letters of the word DAUGHTER ?

The number of words which can be formed from the letters of the word "MAXIMUM" if two consonants cannot occur together?