Pretty scary if this is considered difficult. I actually had to redo my math&#x27;s exam in high-school, so I&#x27;m trying to be nuanced here, but really, this question should be doable, at least in the Netherlands, when you&#x27;re 14-15y old, way.. way before the exams. Though I might have a distorted view, since in the Netherlands you are put together with same-leveled candidates at the age of 12.