A problem by SAURAV KUMAR NISHANT
Level
pending
Consider all the permutations of word ''DEMON'' . Now start arranging them as words are arranged in a dictionary and name first word as 1, second as 2 , and so on till last one is named.
What will be the name of the word ''ODEMN''.
97
100
98
99
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1 solution
firstly words will be from D i.e D gives 4!
similarly E M N give 4! more words before desired word from 2nd digit onwards digits are already in increasing order of their numbers in alphabet so rank = 4*4! +1 as it is next to the no. of words before it i.e. 97