However, depending on your major, you need an overall grade that allows you to graduate. In my case, it was impossible to graduate unless the overall grade was C+ or higher.
Por ejemplo, en Mexico y parte de los paises latinos, usan un sistema decimal (Del 1 al 10); donde el 1 es basicamente "Reprobado" y 10 equivale a "Aprobado" o Exelente...
Anyway, in my case, I studied avg 3 hours a day and was able to graduate a university with a fine grade (based upon 3rd, 4th years which is the hardest). Everything else I just played video games only.