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cate nr de 2 cifre sunt divizibile cu 3?

Răspuns :

Multiplii lui 3 de doua cifre sunt: 12,15,18,21,24,27,30,33,36,39,42,45,48,51,
54,57,60,63,66,69,72,75,78,81,84,87,90,93,96,99.
Exista 30 multiplii ai lui 3 de doua cifre.
12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,69,72,75,78,81,84,87,90,93,96,99
-sunt 30 de numere