If the letters of the word SACHIN are arranged in all possible ways and these words are written out as in a dictionary, then the word SACHIN appears at serial number:
Solutions · 1
Official solution
Alphabetical order: A, C, H, I, N, S (all distinct).
Words starting with A, C, H, I, N (each): 5!=120 per starting letter, total 5×120=600.
SACHIN itself is the first word starting with S (since remaining letters A,C,H,I,N are already in alphabetical order):
\[\text{Rank} = 600+1 = 601\]