A Piece Of Solid Weighs 120 G In Air, 80 G In Water And 60 Kg In A Liquid. The Relative Density Of The Solid And That Of The Liquid Are Respectively:

Given:

Weight of a solid in air = 120g

Weight of a solid in water = 80g

Weight of a solid in liquid = 60kg

Relative density of solid = \( \frac{W_{(air)}}{W_{(air)} – W_{(water)}} \) \( \Rightarrow \frac{120}{120-80} \) \( \Rightarrow \frac{120}{40} \) \( \Rightarrow 3 \)

Relative density of solid = \( \frac{W_{(air)} – W_{(liquid)}}{W_{(air)} – W_{(water)}} \) \( \Rightarrow \frac{120 – 60}{120 – 80} \) \( \Rightarrow \frac{60}{40} \) \( \Rightarrow \frac{3}{2} \)

Therefore, the relative density of the solid is 3 and the relative density of the liquid is \( \frac{3}{2} \), respectively

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