Respuesta:
10% de 30= 10 × 30 300 : 100 = 3 alum lentes
_____ =
100
30 - 3 = 27 alumnos no usan lentes
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Respuesta:
10% de 30= 10 × 30 300 : 100 = 3 alum lentes
_____ =
100
30 - 3 = 27 alumnos no usan lentes