Given a survey of 75 people about possessing National Identity Cards (N), Driving Permits (D), and Passports (P). 13 had none. If |P|=30 and |N D P|=3, find the number of people with at least one docu

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Question 1: Probability and Set Theory

Let $N$ represent National Identity Card, $D$ represent Driving Permit, and $P$ represent Passport.
Total people interviewed = 75.
People who did not have any of the three documents = 13.
So, the number of people with at least one document, $|N \cup D \cup P| = 75 - 13 = 62$.

Given information:

• $|P| = 30$ (total people with Passport)
• $|N \cap D \cap P| = 3$ (people with all three documents)
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