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Total población = 360 = 100%
Total que usa lentes = 1/10 de 360 = 1/10 * 360 = 360/10 = 36
Por regla de 3
360-----> 100%
36------> x
x = 36 * 100%/360
x = 3600%/360
x = 10%
Respuesta.
Usan lentes 36 alumnos que equivalen al 10% de la población