Respostas

2014-03-20T09:56:02-03:00
120 gramas = 0,12 kg   Metros                    Peso(kg)
      1                            0,12
      x                              20

O,12x = 20 . 1
0,12x = 20
X = 20 / 0,12 X = 166,666666...
2 4 2