A.750 kg/m B.800 kg/m C.840 kg/m D.880 kg/m E.900 kg/m mohon bantuannya

P1 : P2
ρ g h : ρ g h
ρ h : ρ h

Penyelesaian:
(1.000)(15 -3) = ρ (15)
15 ρ = 12.000
ρ = 800 kg/m³