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A commitee of 5 is to be chosen from a group of 9. Number of ways it can be formed if two particular persons either serve together or not at all and two refuse to serve with each other.

A commitee of 5 is to be chosen from a group of 9. Number of ways it can be formed if two particular persons either serve together or not at all and two refuse to serve with each other. 

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1 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
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