Question

If 20% of A = 30% of B = 1/6 of C, then find A ∶ B ∶ C.

• A. 12 ∶ 15 ∶ 18
• B. 15 ∶ 10 ∶ 18
• C. 15 ∶ 12 ∶ 18
• D. 18 ∶ 10 ∶ 12

Answer 1

Answer:

B. 15 ∶ 10 ∶ 18

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 A ∶ B ∶ C is 15 ∶ 10 ∶ 18.