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Dau coroana +
15pct !Va rog ajutatima ! 15supra25m + 12supra75m + 0,15dam + 2supra25dam=


Răspuns :

15/25=0,6m
12/75=0,16m
0,15dam=1,5m
2/25=0,08dam=0,8m
0,6m+0,16m+1,5m+0,8m=3,06m