Răspuns :
c+t+v=432
t=c+12
v=2c
c+c+12+2c=432
4c=420
c=105 copii
t=105+12=117 tineri
v=2x105=210 varstnici
t=c+12
v=2c
c+c+12+2c=432
4c=420
c=105 copii
t=105+12=117 tineri
v=2x105=210 varstnici