alleryIf a:b = 2:3 and b:c = 4:5, then a:b:c =
A2:4:5
B8:12:15 (scale b: a:b = 8:12; b:c = 12:15)
C2:3:5
D8:12:25
Answer & Solution
Correct answer: B. 8:12:15 (scale b: a:b = 8:12; b:c = 12:15)
**To combine ratios sharing b:** a:b = 2:3 = 8:12 (×4)
b:c = 4:5 = 12:15 (×3).
**Combined:** a:b:c = 8:12:15.
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