Ex. 16 va rog frumos
Dau coroana
Va rog mult

Răspuns:
a) {3} {3,4} {3,5} {3,6} {3,4,5} {3,4,6} {3,5,6}
b){3} {3,5} {3,6} {3,5,6}
c){3,4} {3,5} {3,6}