A body weighs 600 g in air, 450 g in water and 480 g in a liquid. Then, the relative density of the solid is:

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Solution

$R e l a t i v e d e n s i t y = \frac{W_{a i r}}{W_{a i r} - W_{w a t e r}} = \frac{600}{(600 - 450)} = \frac{600}{150} = 4$

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