Răspuns:
46 bile rosii
52 bile galbene
66 bile albasatre
Explicație pas cu pas:
R+A+G=164
R×1/2-6=A×1/3-5=G×1/4+4
(R-12)÷2=(A-15)÷3=(G+16)÷4
3R-36=2A-30
2R-24=G+16
R+A+G=R+(3R-36+30)÷2+2R-24-16=164
aducem la acelasi numitor:
2R+3R-66+4R-80=328
9R=414
R=46
G=52
A=66