If the letters of the word ‘SACHIN’ are arranged in all possible ways and these words are written out as in dictionary, then the word ‘SACHIN’ appears at serial number

Solution :

In the word SACHIN’ order of alphabets is A, C, H, I, N and S. Number of words start with A = 5!, so with C, H, I, N.

Now, words start with S and after that ACHIN are in ascending order of position, so 5.5! = 600 words are in dictionary before, words with S start and position of this word is 601.

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