Find the number of permutations in the letters of the word PROPORTION taken 4 at a time .

Find the number of permutations in the letters of the word ACCOUNTANCY taken 4 at a time .

The number of permutations of the letters of the word IPROPORTION' taken 4 at a time so that 3 are alike and one is different is

Find the number of permutations of the letters of the word ‘DADOO’

The number of permutations of the letters of the word SIMPLETON taken all at a time is :

Find the number of permutations of the letter of the words 'INDIA '

Find the number of combinations in the letters of the word STATISTICS taken 4 at a time .