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Question

A graph with n vertices will definitely have a parallel edge or self loop if the total number of edges are

a.

more than n

b.

more than n

c.

more than (n+1)/2

d.

more than n(n-1)/2

Answer: (d).more than n(n-1)/2

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Q. A graph with n vertices will definitely have a parallel edge or self loop if the total number of edges are

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