Răspuns:
12kg 10kg si 15kg
Explicație pas cu pas:
72000 + 60000 +90000 = 222000 lei intotal cele 3 cutii cu 37 kg
1kg costa = 222000 / 37 adica =6000 lei
daca in prima cutie
1kg.......6000lei
X kg....72000lei X=72000/6000 = 12kg in prima cutie
1kg.......6000lei
Ykg....60000 lei Y= 60000/6000=10kg in a doua cutie
1kg.......6000lei
Zkg.....90000lei Z=90000/6000=15kg in a treia cutie