Răspuns :
113+87+125=325 baloane ramase 874-325=549baloane vandute 549:3=183 baloane vandute din fiecare culoare 113+183=296 bal rosii 87+183=270 bal verzi 125+183=308 bal galbene
113+87+125+325 total baloane ramase
874-325=549 total baloane vandute
549:3=183 baloane vandute din fiecare culoare
183+113=296 baloane rosii initial
183+87=270 baloane verzi initial
183+125=308 baloane galbene initial
proba 296+270+308=874
874-325=549 total baloane vandute
549:3=183 baloane vandute din fiecare culoare
183+113=296 baloane rosii initial
183+87=270 baloane verzi initial
183+125=308 baloane galbene initial
proba 296+270+308=874