Răspuns :
7 : 4 = 1 rest 3
11 : 4 = 2 rest 3
15 : 4 = 3 rest 3
19 : 4 = 4 rest 3
23 : 4 = 5 rest 3
27 : 4 = 6 rest 3
31 : 4 = 7 rest 3
35 : 4 = 8 rest 3
39 : 4 = 9 rest 3
11 : 4 = 2 rest 3
15 : 4 = 3 rest 3
19 : 4 = 4 rest 3
23 : 4 = 5 rest 3
27 : 4 = 6 rest 3
31 : 4 = 7 rest 3
35 : 4 = 8 rest 3
39 : 4 = 9 rest 3