Permutations and Combinations|Rank of a word in dictionary

Permutation & Combination

Permutation & Combination

Permutation & combination

Permutation & combination

Find the rank of 'RANK' in dictionary.

find the number of permutation and combination of 4 letters taken from the word ARYABHATTA

" If all possible permutations of CORONA are arranged in dictionary order,then the last letter of the "302" nd word in the list is "

" If all possible permutations of CORONA are arranged in dictionary order,then the last letter of the "302" nd word in the list is "

If the permutations of a, b, c, d, e taken all together be written dowan in alphabetical order as in dictionary and numbered then the rank of the permutation debac, is

The 120 permutations of MAHES are arranged in dictionary order, as if each were an ordinary five-letter word. The last letter of the 86^(th) word in the list is