If 6 letter words, with or without meaning can be formed out of these letters of the word "MATHEMATICS", repetition of letters is not allowed is $960 P$. Then, ' $P$ ' equals

6 couples decided to form a committee of four members, the number of different committees that can be formed in which no couple finds place is

Out of 9 consonants and 4 vowels, how many words of 4 consonants and 3 vowels can be formed?

The sum of all the numbers of four different digits that can be made using the digits 0, 1, 2 and 3 is