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determinati cate numere de 3cifre distincte se pot forma cu cifrele 1,3,5,7 si 9

Răspuns :

GeluTeodorSusanu
sunt 5 cifre aflam numerele aplicand formula de aranjamente de 5 luate cate trei adica 5!/3!= 20
Estela00
135,137,139,153,157,159,173,175,179,193,195,197,315,317,319,351,357,359,371,375,379,391,395,397,513,517,519,531,537,539,571,573,579,591,593,597,713,715,719,731,735,739,751,753,759,791,793,795,913,915,917,931,935,937,951,953,957,971,973,975

☆60 de numere☆

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