If A : B = 2 : 3, B : C = 3 : 4 and C : D = 4 : 5, then, A : B : C : D is?
Explanation:
A/B = 2/3, B/C = 3/4, C/D = 4/5
⇒ If A = 2, B = 3, C = 4 and D = 5
∴ A : B : C : D = 2 : 3 : 4 : 5
Hence, option (a).
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