1.

If 20% of A = 30% of B = 1/6 of C, then find A ∶ B ∶ C.1). 12 ∶ 15 ∶ 182). 15 ∶ 10 ∶ 183). 15 ∶ 12 ∶ 184). 18 ∶ 10 ∶ 12

Answer»

20% of A = 30% of B = 1/6 of C

⇒ 20/100 × A = 30/100 × B = 1/6 × C

⇒ A/5 = 3B/10 = C/6

⇒ A ? B ? C = 5 ? 10/3 ? 6 = 15 ? 10 ? 18


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