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victor ,smarandita si anca au impreuna 3020 bomboane .cate bomboane are fiecare copil ,daca victor si smarandita cu 1520 de bomboane ,iar smarandita si anca au impreuna 2300 de bomboane.

Răspuns :

A+V+S=3020 V+S=1520 S+A=2300 V+1520=3020 V=3020-1520 V=1500 S+1500=1520 S=20 A+20=2300 A=2280
v+s+a=3020
v+s=1520
a=3020-1520=1500
s=2300-1500=800
v=1520-800=720