If 3∠A = 4∠B = 6∠C, then A : B : C = ?
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
27
If 3∠A = 4∠B = 6∠C, then A : B : C = ?
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