Question

Determina toate nr care impartite la 5.dau cîtul 13

Answer 1

n=c*i+r
n=13*5+r

n =13*5+0
n= 65

n=13*5+1
n=66

n=13*5+2
n=67

n=13*5+3
n=68

n=13*5+4
n=69

⇒ n ∈ {65;66;67;68;69}

Answer 2

n : 5 = 13 (resturile posibile sunt: 0;1;2;3;4}

=> n=5*13+0=65; 66; 67; 68; 5*13+4=69}