Study the given Venn diagram and answer: How many smart people are polite?![Screenshot 2025-05-05 163449.png](https://res.cloudinary.com/aptidude/image/upload/v1746443110/aptidude_questions/a2iujcom6hgvptib4ikl.png)

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To find how many smart people are polite, look for the regions in the Venn diagram that are common to both "Smart" and "Polite."  
- The number 12 represents people who are both smart and polite, but not educated.  
- The number 7 represents people who are smart, polite, and educated.

Add these two regions:  
12 (smart & polite only) + 7 (smart, polite & educated) = 19

Therefore, the total number of smart people who are polite is **19**.

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