A nugget of gold and quartz weighs 100 g

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

A nugget of gold and quartz weighs 100 g. Specific gravity of gold, quartz and nugget are 20.0, 4.0 and

5.0 \text{ g mL}^{-1}

respectively. The mass of gold in nugget is : (1) 30 g (2) 35 g (3) 25 g (4) 20 g