Răspuns :
prima ziI----I
a doua ziI----I+2
a treia zi I----I+2 I+2 I
15-6=9 egalam partile
9/3=3 probleme prima zi
3+2=5 a doua zi
5+2=7 a treia zi
a doua ziI----I+2
a treia zi I----I+2 I+2 I
15-6=9 egalam partile
9/3=3 probleme prima zi
3+2=5 a doua zi
5+2=7 a treia zi