Question

A piece of marble tile weighs

100 g in air. If its density is 2.5 g/cc, what
will be its weight in water?

Answer 1

The answer is 60 g.

The volume of the tile would be :

Volume = Mass ÷ Density

• Volume = 100 g ÷ 2.5 g/cc
• Volume = 40 cc

Therefore, water displaced is equal to the volume of tile :

• 100 cc water weighs 100 g
• Hence, 40 cc water weighs 40 g

Hence, the weight of the tile in water :

• 100 g - 40 g
• 60 g