Question

a solid weighs 80 g in air, 68 gram in water and 60 g in oil. Find relative density of oil.

Answer 1

R.D.=loss in wt. of solid in oil / loss of wt. of solid in water
=Wt. of object in air-wt in oil /wt. in air -wt in water
=80-60/ 80-68
=20/12
=10/6
=1.666666667
=1.67 (approx)