Question

Aflati toate numerele natutale de trei cifre,care impartite la 74 dau catul 13

Answer 1

74x2+13=61
74x3+13=235
74x4+13=309
74x5+13=383
74x6+13=457
74x7+13=531
74x8+13=605
74x9+13=679
74x10+13=753
74x11+13=827
74x12+13=902
74x13+13=975

Answer 2

n:74 =13, rest r ⇒ n =74·13 + r, unde r ∈ {0, 1, 2, 3, ..., 72}

74·13 =962

Numerele cerute sunt:

962, 963, 964, ... , 999