Murphy Ortega
10/04/2024 · Elementary School
Carlos quiere camblar la contraseña de su computador. Esta debe ser de cuatro digitos diferentes, entre el o y el 9 . ambos Inclusive. ¿Cuántas contraseñas que terminen en 5 se pueden formar? a) 72 contraseñas. b) 504 contraseñas. c) 720 contraseñas. d) 3.024 contraseñas. e) 5.040 contraseñas.
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Para formar contraseñas de cuatro dígitos diferentes que terminen en 5, hay 648 combinaciones posibles.
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