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If the letters of the word SACHIN are ar...

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

603

B

602

C

601

D

600

Text Solution

Verified by Experts

The correct Answer is:
C
Words starting with A,C,H,I,N are each equals to 5!
`therefore`Total words `=5xx5!=600`
the first word starting with S is SACHIN.
`therefore`SACHIN appears in dictionary at serial number 601.
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ARIHANT MATHS-PERMUTATIONS AND COMBINATIONS -Exercise (Questions Asked In Previous 13 Years Exam)
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  10. The number of seven digit integers, with sum of the digits equal to 10...

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  13. In how many ways 5 different balls can be distributed into 3 boxes so ...

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  14. There are 10 points in a plane, out of these 6 are collinear. The numb...

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  15. The total number of ways in which 5 balls of differert colours can be ...

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  16. Let n denote the number of all n-digit positive integers formed by the...

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  17. Let a(n) denote the number of all n-digit numbers formed by the digits...

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  18. Assuming the balls to be identical except for difference in colours, t...

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  19. Let Tn be the number of all possible triangles formed by joining ve...

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  20. Consider the set of eight vector V={a hat i+b hat j+c hat k ; a ,bc in...

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