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8camioane transport a 640t de marfa in 10 zile. In cate zile vor transporta 10camioane 320t de marfa?

Răspuns :

8 camioane..........640 t........10 zile
4 camioane..........320 t........10:2=5zile zile
1camion ..............320 t.........5*4=20 zile
10 camioane .......320 t.........20:10=2 zile