Respostas

A melhor resposta!
2014-08-29T22:24:06-03:00
Regra de tres
600---50
840---x

600x= 42000
x=42000/600
x=70
3 4 3
2014-08-29T22:24:09-03:00
50Litros/600km=x litros/840 km =>x=70 litros