1. The problem is to understand and explain a scoring system, presumably for an exam or assignment, where the total marks allocated are 6. 2. Since the question is simply "for 6 marks" without additional context, we interpret it as needing to structure or solve problems that total 6 marks. 3. For example, if a test consists of questions worth 6 marks in total, the scoring might be divided into parts, such as two questions each worth 3 marks, or three questions each worth 2 marks. 4. Without further specific math, we confirm that the total marks sum to $6$ as given. 5. Therefore, the final answer is: Total marks $=6$.