It sounds like you might be referring to a ratio, such as 20:4, which could relate to a variety of contexts like a study schedule (20 minutes of study followed by a 4-minute break), a problem-solving ratio, or something else entirely.
If you're looking to prepare for university exams and are considering a study technique, the Pomodoro Technique is a popular method that involves studying for a set amount of time (typically 25 minutes), followed by a 5-minute break, though you can adjust these times as needed to suit your personal concentration span and workload. This technique can help boost productivity and maintain focus over longer periods.
Given that your initial message is very brief, if you could provide more detail or clarify your specific needs, I'd be happy to offer more targeted assistance or advice for your university exam preparation.
