Q. 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
Explanation
(d)
In the word SACHIN order of alphabets is A, C, H, I, N, S.
The number of words starting with A, C, H, I, N are each equal to $5!$
$\therefore$ Total number of wards$5 \times 5! = 600$
The first word starting with S is SACHIN
So, word SACHIN appears at serial number 601
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.