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La direccin de la Universidad llev al cabo una encuesta entre 1000 estudiantes de los cuales 160 reprobaron fsica, 18 de ellosreprobaron Estadstica y seis

La direccin de la Universidad llev al cabo una encuesta entre 1000 estudiantes de los cuales 160 reprobaron fsica, 18 de ellosreprobaron Estadstica y seis de estos tambin reprobaron matemticas; 58 reprobaron exactamente dos asignaturas de las tres, y 16 deestos reprobaron Estadstica y matemticas, 120 reprobaron Estadstica y 180 reprobaron matemticas.a.Cuntos alumnos reprobaron las tres materias?

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