JEE Mains 2020 Model Paper 2 New Pattern

A piece of metal weights 45 g in air and 25 g in a liquid of density 1.5 × 103kgm−3 kept at 300C. When the temperature of the liquid is raised to 40°C, the metal piece weights 27g. The density of liquid at 40°C is 1.25 × 103kgm−3. The coefficient of linear expansion of metal is