Question

Noteaza toate numerele de trei cifre care:
a) au cifra sutelor si a unitatilor 3.
b) au cifra zecilor si cifra unitatilor 6.

Answer 1

a) 3a3 ∈{303,313,323,333,343,353,363,373,383,393}
b) a66 ∈{166,266,366,466,566,666,766,866,966}