Răspuns :
300-250=50 tone => 50 : 10 = 5 transprturi
300-170=130 => 130:10= 13 transpoturi
300-170=130 => 130:10= 13 transpoturi
a)300-250=50
300-170=130
130:10=13
50:10=5
Scuze dae nu stiu cealalta varianta.