Jawabanmu

2014-03-27T17:12:35+07:00
ρb.Vb = ρf. Vbf
ρb. 800 = 1000. 200
ρb. 800 = 200000
ρb = 200000/800
ρb = 250 kg/m³
tapi kalo ngga salah yaa..