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Airplane Seat Paradox
This Medium puzzle in the “logic” category rewards careful reading and step-by-step reasoning. Use the hint if you are stuck, then compare your approach with the explained answer.
100 passengers board a plane with assigned seats.
The first passenger has lost their boarding pass and chooses a seat at random.
Every other passenger does the following:
- If their own seat is free, they sit in it
- If not, they choose a random free seat
What is the probability that the last passenger sits in their own seat?
Preparing…