Răspuns :
i cutie /----/-----/
} 33
II cutie /----/ + 3
33 - 3 = 30
30 : 3 = 10 un segment egal
I cutie = 10 x 2 = 20 kg
II cutie = 10 + 3 = 13 kg
} 33
II cutie /----/ + 3
33 - 3 = 30
30 : 3 = 10 un segment egal
I cutie = 10 x 2 = 20 kg
II cutie = 10 + 3 = 13 kg