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The number of ways in which four persons...

The number of ways in which four persons be seated at a round table, so that all shall not have the same neighbours in any two arrangements,is

A

24

B

6

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
C
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OBJECTIVE RD SHARMA-PERMUTATIONS AND COMBINATIONS-Exercise
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  12. ""^(n)C(n-r)+3.""^(n)C(n-r+1)+3.""^(n)C(n-r+2)+""^(n)C(n-r+3)=""^(x)C(...

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  14. Find the number of ways in which one can post 5 letters in 7letter ...

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