# If 3<span lang="E

Let say

A =x/3

B = x/4

C = x/6

A + B + C = 180

x/3 + x/4 + x/6 = 180

(4x + 3x + 2x)/12 = 180

9x/12 = 180

X= 240

A =x/3 = 240/3 = 80

B = x/4 = 240/4 = 60

C = x/6 = 240/6 = 40

So, A:B:C = 4:3:2

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