Respostas

2013-09-05T22:06:46-03:00
310km = 25 l
25*2=50
310*2=620

carro de afonso irá percorrer 620 km com 50 l
4 3 4
2013-09-05T22:10:30-03:00
310 --------------- 25
x ------------------  50

25x = 310.50
25x = 15500
x = 15500/25
x = 620 km
6 4 6