Răspuns :
25 becuri rosii
25+15=40 becuri albastre
25 becuri galbene
25-15=10 becuri verzi
25+40+25+10=100 becuri in total
25+15=40 becuri albastre
25 becuri galbene
25-15=10 becuri verzi
25+40+25+10=100 becuri in total