Răspuns :
/../../../ oi albe
/../ oi negre
a=3n
3n-3=2n
2n=150
n=150:2=75
oi negre=75
oi albe=75x3=125
/../ oi negre
a=3n
3n-3=2n
2n=150
n=150:2=75
oi negre=75
oi albe=75x3=125