Consider the letters of the word 'MATHEMATICS' Possible number of words taking all letters at a time such that at least one repeating letter is at odd posi- tion in each word is

Consider the letters of the word 'MATHEMATICS' Possible number of words taking all letters at a time such that least one repeating letter is at odd position in each word is -

Consider the letters of the word MATHEMATICS. There are eleven letters some of them are identical.Letters are classified as repeating and non-repeating letters. Set of repeating letters = {M, A, T}. Set of non-repeating letters = {H, E, I, C, S}Possible number of words taking all letters at a time such that atleast one repeating letter is at oddposition in each word, is

Consider the letters of the word 'MATHEMATICS Possible number of words in which no two vowels are together is :

Consider the letters of the word 'MATHEMATICS Possible number of word taking all letters at a time such that in each word both M's are together and both T's are together but both A's are not together is -

Consider the letters of the word 'MATHEMATICS Possible number of words taking all letters at a time such that in each word both M’s are together and boths T’s are together but both A’s are not together is

Consider the letters of the word 'MATHEMATICS Possible numbers of words in which no two vowels are together is -

Consider the letters of the word MATHEMATICS. Set of repeating letters = {M, A, T}, set of non repeating letters = {H, E, I, C, S} :

The number of four letter words using the letters of the word MISTER in which atleast one letter is repeated is

Seven different letters are given. Then the number of ways in which , words of 5 letters can be formed such that atleast one of the letters is repeated is