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WBCS Preliminary Examination 2017 — General Studies · Question 168 of 200

Q168
ArithmeticRatio, Proportion & Mixtures
40% of A is 60% of B. A : B will be
  1. a.2:3
  2. b.3:2
  3. c.7:8
  4. d.8:7

Answer: (B) 3:2

$0.4A = 0.6B \Rightarrow \dfrac{A}{B} = \dfrac{0.6}{0.4} = \dfrac{3}{2}$, so $A:B = 3:2$.

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40% of A is 60% of B. A : B will be — WBCS Preliminary Examination 2017 Q168 | Prostuti360°