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A woman has 11 close friends. Number of ...

A woman has 11 close friends. Number of ways in which she can invite 5 of them to dinner if two particular friends of them are not on speaking terms and will not attend together is

A

`""^(11)C_(5)-""^(9)C_(3)`

B

`""^(9)C_(5)-2""^(9)C_(4)`

C

`3""^(9)C_(4)`

D

`378`

Text Solution

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The correct Answer is:
A, B, C, D
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