Răspuns :
r + g = 50
g = 4*r
r + 4*r = 50
5*r = 50
r = 50/5
r = 10 rate
g = 4*r
g = 4*10
g = 40 gaini
g = 4*r
r + 4*r = 50
5*r = 50
r = 50/5
r = 10 rate
g = 4*r
g = 4*10
g = 40 gaini