Question

If the letters of 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. $601$
• B. $600$
• C. $603$
• D. $602$

Answer 1

The correct option is A $601$

Alphabetical order is $A,C,H,I,N,S$
No. of words starting with $A=5!$
No. of words starting with $C=5!$
No. of words starting with $H=5!$
No. of words starting with $I=5!$
No. of words starting with $N=5!$
Then order of $SACHIN$ is $5!+5!+5!+5!+5!+1$

$=120+120+120+120+120+1=601.$