mathematics

Question

is this solution is correct.I think either opt(a) or (c) is correct........

Answer 1

Chromatic number of cycle graph = 2 for even ,3 for odd

Chromatic number of wheel graph = 3 for odd , 4 for even

so answer should be 6  only

take even case of both = 2+4= 6 , 3+3 = 6

Comments

chromatic no of cycle graph is 2(n is even) or 3(n is odd)