Mathematics, 27.08.2020 22:01, Isaiahplater27

En un examen de admisión de 120 preguntas, cada respuesta correcta vale 2 puntos y por cada incorrecta se quita medio punto. Un postulante respondió todas las preguntas obteniendo 80 puntos. ¿Cuántas preguntas respondió mal? :/

Answers: 2

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En un examen de admisión de 120 preguntas, cada respuesta correcta vale 2 puntos y por cada incorrec...