If A : B = 2 : 3, B : C = 4 : 3 and C : D = 2 : 5, then, A : B : C : D is?
Explanation:
The combined ratio:
A : B : C : D = 2 × 4 × 2 : 3 × 4 × 2 : 3 × 3 × 2 : 5 × 3 × 3
= 16 : 24 : 18 : 45
Hence, option (a).
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