Let T be a tree with 10 vertices The sum of the degrees of all the vertices in T is gate computer science 2017

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## Let T be a tree with 10 vertices. The sum of the degrees of all the vertices in T is _____. -gate computer science 2017

A) 18
B) 19
C) 20
D) 21

By:satyashiromani

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A) 18

Explanation:
Given, v= Total vertices = 10 e = v - 1 =9 Degree = 2 * e = 18 Therefore, option A is correct

This explanation is contributed by Deepak Raj.

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