Which of the following statements is/are TRUE for undirected graphs?
P: Number of odd degree vertices is even.
Q: Sum of degrees of all vertices is even.
Neither P nor Q
Both P and Q
Q only
P only
This question is part of this quiz :
GATE CS 2013,Top MCQs on Graph Theory in Mathematics,Topic Wise Quiz on Graph Theory,Discrete mathematics PYQ GATE QUIZ