List the set of letters of the following words in Roster form.
(i) INDIA
(ii) PARALLELOGRAM
(iii) MISSISSIPPI
(iv) CZECHOSLOVAKIA

Find the number of ways of arranging (all) the letters of the following words. (i) SWIMMING (ii) MISSAMMA (iii) BROOKEBOND (iv) DECEMBER

Write the following sets in the roster form : D = {all letters in the word PERMISSION}