Answer:
3 : 6 : 2
Step-by-step explanation:
Given
b = 3c ( divide both sides by 3 )
c = [tex]\frac{1}{3}[/tex] b , that is
c = [tex]\frac{1}{3}[/tex] × 2 = [tex]\frac{2}{3}[/tex]
Thus
a : b : c = 1 : 2 : [tex]\frac{2}{3}[/tex] ( multiply all parts by 3 )
a : b : c = 3 : 6 : 2