Question

A solid weighs 75g in air and 55.6g in water so what is relative density of solid

Answer 1

Relative density of an object = density of object/density of water 
but r .d of object =75-55.6
=19.4

density of object/density of water =75/19.4
= 3.86

Answer 2

hey mate.....

Given values;

weight of solid in air = 75 g;
weight of solid in water = 55.6 g

Relative density of solid = Weight of solid in airWeight of solid in air − Weight of solid in waterRelative density of solid = 7575 − 55.6 Relative density of solid =7519.4 = 3.866 Relative density of solid =3.866