I just came across this tweet and thought it would be fun to share here:
100 people line up to take their seats in a 100💺theater
The 1st in line lost her 🎟
sits in a💺at random
Each remaining theatergoer sits in their assigned💺unless it's occupied & then sits in a random💺
What's the probability the last person in takes their assigned💺?02:48 AM - 20 Jul 2018
It looks like some people in the Twitter replies have already come up with a solution, but I thought it would be a fun puzzle nonetheless!