Ten different letters of an alphabet are given. Words with five letters are formed from these given letters. Determine the number4 of words which have at least one letter repeated.

10 different letters of an alphabet are given. Words with 5 letters are formed from these given letters then the numbers of words which have atleast one letter represent is:

Eight different letters of an alphabet are given. Words of 4 letters from these are formed. Find the number of such word with at least one letter repeated.

Find the number of words formed with the letters of the word 'INDIA'.

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

The word THINGS is given. Determine the number of different 6 letters words that can be formed

How many different words of 4 letters can be formed with the letters of the word EXAMINATION?

Find the number of words formed with the letters of the word 'MISSISSIPPI'.

Different words are formed by arranging the letters of the word 'SUCCESS' Q. The number of words in which C's are together but S's are separated, is

Word of length 10 are formed using the letters A,B,C,D,E,F,G,H,I,J. Let x be the number of such words where no letter is repeated; and let y be the number of such words where exactly one letter is repeated twice and no other letter is repeated. The, y/(9x)=

Find the number of different 4-leter words, with or without meaning, that can be formed from the letters of the word NUMBER.