ISRO | ISRO CS 2007 | Question 6

A graph with n vertices and n-1 edges that is not a tree, is
(A) Connected
(B) Disconnected
(C) Euler
(D) A circuit

Answer: (B)
Explanation: If a graph has n vertices and n-1 edges and it is not a tree than its a disconnected graph which contains at least a cycle.

Option (B) is correct.

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