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Q.

If the letters of the word SACHIN are arranged in

 all possible ways and these words are written in

 dictionary order, then the word SACHIN appear

 at serial number

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a

603

b

600

c

601

d

602

answer is B.

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Detailed Solution

ACHINS

If the first letter is A, C, H, I or N, there are

5⋅5!=600 words.

Then the next word is SACHIN

∴ The required serial number is 601

 

 

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