A six letters word is formed using the letters of the word ALMIGHTY with or without repetition. Find the number of words that contain exactly three different letters.

The number of words formed using the letters of the word 'ARTICLE' is

The number of words formed using the letters of the word 'ARTICLE' beginning with A is

How many ‘letter strings’ can be formed using the letters of the word HIGHER such that Q the strings ends with H.

Number of words formed using all the letters of the word 'EXAMINATION' if alike letters are never adjacent.

(i) Find the number of strings of length , which can be firmed using the letters of the word BIRD , without repetition of the letters. (ii) How many strings of length 5 cm be formed out of the letters of the word "PRIME" taking all the letters at a time without repetition.

How many ‘letter strings’ can be formed using the letters of the word HIGHER such that Q the strings starts with G and ends with E.