The number of selections of four letters from the letters ofthe word ASSASSINATION is

The number of ways of choosing four letters from the letters of the word MATHEMATICS containing exactly one pair of repeated letters is

The number of arrangements of the letters of the word 'ASSASSINATION' is

Find the total number of ways of selecting five letters from the letters of the word INDEPENDENT. How many words can be formed from these five letters ?

Find the total number of ways of selecting five letters from the letters of the word INDEPENDENT. How many words can be formed from these five letters ?

Find the number of ways in which a selection of four letters can be made from the letters of the word "PROPORTION".

Find the number of arrangements, which can be made from the letters of the word : ASSASSINATION .