If 2A = 3B = 5C, what is A : B : C ?

2A = 3B = 5C $\Rightarrow \frac{2 \mathrm{~A}}{30}=\frac{3 \mathrm{~B}}{30}=\frac{5 \mathrm{C}}{30}$ $\Rightarrow \frac{\mathrm{A}}{15}=\frac{\mathrm{B}}{10}=\frac{\mathrm{C}}{6}$ ∴ A : B : C = 15 : 10 : 6 Alternative: $\frac{\mathrm{A}}{\mathrm{B}}=\frac{3}{2}$ Ratio of A & B is same in answer as it is a question) ⇒ From option (4)

B

⇒ 3 : 2 Option (4) will be the answer.