If a:b=1:2 and b:c=3:4 find a:b:c?
Choices:
A) 3:5:8
B) 3:6:8
C) 3:7:8
D) 3:6:4
E) 3:6:9
a:b = 1:2, b:c = 3:4   1:2   3:4   (a = 1 × 3 = 3, b = 2 × 3 = 6 and c = 2 × 4 = 8)   (a = a × b, b = b × b and c = b × c)   a:b:c = 3:6:8   3:6:8
<result>B</result>
If a:b=1:2 and b:c=3:4 find a:b:c?