Plz explain the second part ( volume of the piece of stone) - Physics - Fluids

Question

Plz explain the second part ( volume of the piece of stone)

Rohit Babu · Accepted Answer

Dear Student,Given,Wair=15 1g,  Wliquid=10
9gf,Wwater=9
7gf ,ρwater=1g/cm3We have,density=massvolume⇒volume=massdensity=Wair-Wwaterρwater=15
1-9 71=5
4cm3When stone is immersed in water, upthrust=Wair-WwaterRegards