Correct Answer: Option B

Explanation

Relative density of solid = \(\frac{\text{weight of solid}}{\text{weight of an equal volume of water}}\)

\(\frac{4.8}{4.8 -3.2}\) = \(\frac{4.8}{2}\) = 2.4

Ratio of density of liquid = \(\frac{\text{weight of liquid kerosine}}{\text{weight of an equal volume of water}}\)

= \(\frac{4.8 - 3.2}{4.8 - 2.8}\) = \(\frac{1.6}{2}\)

= 0.8

= \(\frac{\text{density of solid}}{\text{density of kerosine}}\)

= \(\frac{2.4}{0.8}\) = 3

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