Jawabanmu

2014-02-13T15:14:25+07:00
Berat awal = 10 sak x 40 kg = 400 kg (bruto)
tara= 0,2.400 = 80 kg
berat netto = 400-80 = 310kg
2014-02-13T15:19:13+07:00
1 sak =40 kg
10 sak = 40x10 =400kg
Tara =0.2 kg
Tara 10 sak =0.2 x 400
                  =80 kg