Question

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:

• A. $602$
• B. $603$
• C. $600$
• D. $601$

Answer 1

Answer: (D)

$601$

Answer 2

In SACHIN order of alphabets is A,C,H,I,N,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 orders of position so $5-51=600$ words are in dictionary before words with S start and position of this word is 601.