Question

Hii Students !!

Question from iit jee mains :- 2005

Chapter name :- permutation and combination

________________________

If the letters of the word SACHIN are arranged in all possible ways and these words are written out as in dictionary , the the word SACHIN appears at serial number .
_____________________
(a ) 601
(b) 600
(c)603
(d) 602

Answer 1

Solution :

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!

SACHIN - 1

•°• sachin appears at serial no. 601

option (a) is correct option .