Tolong di jawab ya please ya

C : S = 2 : 3
S : N = 6 : 3
780 = C + S + N
N = ??

C : S : N = 4 : 6 : 3

4x + 6x + 3x = 780
13x = 780
x = 60

N = 3(60) = 180

#semoga membantu