baloane galbene |------|
baloane albastre |------|------|------|
baloane rosii |------|------|------|------|-+9| } 145
145-9=136 (8 segmente egale cu baloane galbene)
136:8=17 (baloane galbene)
17×3=51 ( baloane albastre)
17+51+9= 77 (baloane rosii).
Verificare: 77+51+17=145.