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A solid weighs 4.8g in air, 2.8g in water and 3.2g in Ker...

A solid weighs 4.8g in air, 2.8g in water and 3.2g in Kerosine. The ratio of density of the solid to that of the kerosine is 

A.

2

B.

32

C.

23

D.

3

Correct answer is D

Relative density of solid

weight of solidweight of an equal volume of water

= 4.84.82.8 

= 4.82 = 2.4

Relative density of liquid 

=   Weight  of liquid kerosineWeight of an equal volume of water 

= 4.83.24.82.8  = 1.62 = 0.8

= Ratio of relative density of solidRelative density of Kerosine 

= density of soliddensity of Kerosine

= 2.40.8 

= 3