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.

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:

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.

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

Number of words of 4 letters that can be formed with the letters of the word IIT JEE, 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

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

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)=

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

Find the number of permutations of the letters of the word ALLAHABAD.

Find the number of different words formed with the letters of the word HARYANA.