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Dano forgot his computer password. The password was four characters long. Dano remembered only three characters: 3, g, N. The last character was one of the numbers 3, 5, 7, 9. How many possible expansions are there for Dano's password?

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Answer to a math question Dano forgot his computer password. The password was four characters long. Dano remembered only three characters: 3, g, N. The last character was one of the numbers 3, 5, 7, 9. How many possible expansions are there for Dano's password?

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Sigrid
4.5
115 Answers
Keďže si Dano pamätal tri znaky zo štyroch, musíme zistiť počet možných rozšírení pre posledný znak hesla. Dano si pamätá, že posledný znak je buď 3, 5, 7 alebo 9. Každá z týchto možností nám dáva jedno možné rozšírenie hesla. Preto existujú 4 možné rozšírenia pre poslednú postavu. Odpoveď: Existujú 4 možné rozšírenia pre Danovo heslo.

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