Mathematics, 18.03.2021 03:10, SmoothCruzito16

Num relogio digital as horas são exibidas por meio de quatro algarismos. Por exemplo, ao mostrar 00:00 sabemos que é meia-noite e ao mostrar 23:59 sabemos que falta um minuto para meia-noite. Quantas vezes por dia os quatro algarismos mostrados são todos pares?

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Num relogio digital as horas são exibidas por meio de quatro algarismos. Por exemplo, ao mostrar 00:...