Question

If a body weighs $60g$ in air and $40g$ in water then the specific gravity of the body is

• A. $3$
• B. $6$
• C. $1.5$
• D. $4.5$

Answer 1

The correct option is A $3$

Specific gravity of the body is given as

$S.G=\frac{weight}{volume}$

Here, weight of the body in air is 60g.

Volume of body is the difference of weight of body in air and that in water.

Hence, volume of body is, 60g - 40g = 20g.

Therefore,

$S.G=\frac{60}{20}$

$S.G.=3$