Tolong jawab pls!bsk kumpul

a. G = {4, 6, 8, 10, 12, 14, 16}
b. n(G) = 7
    7+7+7=21/3 = 7

G = 4, 6, 8, 10, 12, 14, 16,
n(G) + n(G) +n(G):3
(4+6+8):3
18:3=6
/( 10+12+14):3
36:3=12.

munkin dicoba n(G) diganti angka diatas
maaf kalo salah