I-----------------------I-----------------------I------------------------I total cantitate lapte
1/3
mic dejun I-----------I-----------I------------I-----------I
I-----------I-----------I
2/4 pt desert masa de pranz
I-----------I-----------I restul de 16 litri pt. masa de seara
2/4 = 16 litri , deci pt masa de pranz s-au consumat tot 16 litri
1/3 = 16 litri ( observam egalitatea segmentelor )
total : 16+ 16 + 16 = 48 litri