An object of weight W and density ρ is dipped in a fluid of density ρ1. Its apparent weight will be
W(ρ−ρ1)
W(1−ρ1ρ)
(ρ−ρ1W)
W(ρ1−ρ)
Let V be the volume of the body. So, W=ρVg Now, buoyant force, B=ρ1Vg Apparent weight =W−B=(ρ−ρ1)Vg=(1−ρ1ρ)W