Justify your answer to each of the following questions. Assume that friendship i
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Question
Justify your answer to each of the following questions. Assume that friendship is a symmetric relationship (i.e., if A is a friend of B, then B is also a friend of A), but not a reflexive relationship (i.e., no one is a friend of themselves).
1. Justify your answer to each of the following questions. Assume that friend ship is a symmetric relationship (i.e., if A is a friend of B, then B is also a friend of A), but not a reflexive relationship (i.e., no one is a friend of themselves) (a) In a group of 7 people, is it possible for each person to have exactly 3 friends? (b) In a group of 10 people, is it possible for each person to have exactly 4 friends?Explanation / Answer
No, according to the conditions given in the question it is not possible to have exact 3 or 4 friends among 7,10 people respectively.
In some case it may b lesser or higher each student can have more friends.
as A-->B B-->A
but not A-->A
not B-->B
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