Problem #PRU-31076

Problems Algebra and arithmetic Number theory. Divisibility Odd and even numbers
 11–13  2.0

Problem

Can the degrees of vertices in the graph be equal to:

a) 8, 6, 5, 4, 4, 3, 2, 2?

b) 7, 7, 6, 5, 4, 2, 2, 1?

c) 6, 6, 6, 5, 5, 3, 2, 2?