1. [tex] M_{5}[/tex] ∈ {10,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85,90,95}
2. ( 3,4,7,11) U (1,2,3,4,5,6) ∈ { 1,2,3,4,5,6,7,11 }
3. 17 ∈ (13,15,17,19) Adevarat
6 ∈ (2,5,6,7) n (4.1.6,8,10) Adevarat
4. M ∈ {1,3,5,0,2}
P ∈ {1,3,5,4,6}
5. x=3
C= 4·3+1 , 12 , 27 ⇒
⇒ 13 , 12 , 27
D= 4·3 , 4·3+2 , 2·3+7⇒
⇒ 12 , 14 , 13