1. The problem is to understand and solve a question involving a Venn diagram, which typically represents sets and their relationships. 2. Venn diagrams use circles to show how different sets overlap, representing intersections, unions, and complements. 3. The main formulas used are: - Union: $$A \cup B = A + B - A \cap B$$ - Intersection: $$A \cap B$$ - Complement: $$A^c$$ 4. To solve a problem with a Venn diagram, identify the sets involved and their overlaps. 5. Use the formulas to find the number of elements in unions or intersections as required. 6. For example, if you know $$|A|$$, $$|B|$$, and $$|A \cap B|$$, you can find $$|A \cup B|$$ using the union formula. 7. Always check the total number of elements in the universal set to verify your answers. 8. Without a specific problem, this is the general approach to Venn diagram questions.