17 saci faina.......................35 saci cartofi......................3250 kg / -
17 saci faina.......................26 saci cartofi.....................2764 kg
......................................................................................................................
//...........................................9 saci cartofi.......................486 kg
1 sac cartofi = 486 : 9 = 54 kg
35 x 54 = 1890 kg (35 saci cartofi)
17 saci faina..........................1890 kg...............................3250 kg
17 saci faina=3250-1890=1360 kg
1 sac făina = 1360 : 17 = 80 kg