Respostas

2013-11-25T20:15:26-02:00
160 dias --------   60 op
  x         ----------  40 op

40x  = 160 . 60
40x = 9600
x = 9600 /40
x = 240 dias
3 5 3
2013-11-25T20:16:20-02:00
146 dias.Aqui escreva a resposta
2 3 2