If the letters of the word, ‘LATE’ be permutated and the words so formed be arranged as in a dictionary, find the rank of the word LATE.
Given the word LATE.
Arranging the permutations of the letters of the word LATE in a dictionary:
To find: Rank of word LATE in dictionary.
First comes, words starting with letter A = 3! (3 letters, no repetation)
words starting with letter E = 3! (3 letters, no repetation)
words starting with L
words starting with LA:
LAET = 1
LATE = 1
Rank of the word LATE = 6 + 6 + 1 + 1
= 14
Hence the rank of the word LATE in arranging the letters of LATE in a dictionary among its permutations is 14.