A body weighs 20 gf in air, 18.2 gf in a liquid and 18.0 gf in water. Calculate the relative density of the body.

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Solution

The correct option is A 10
$R e l a t i v e d e n s i t y = \frac{w e i g h t i n a i r}{l o s s o f w e i g h t i n w a t e r}$

$= \frac{20}{(20 - 18)}$
$= 10$

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