A room has 25 seats. There are 25 people in a queue. People enter the room one by one. 1st person in the queue does not know his/her seat. Others know their seats. 1st person sits randomly. If next person's seat is empty then he will sit on his/her seat. If not, he/she will sit randomly. What is the probability of 25th person that he/she will sit on his/her seat?
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$\begingroup$ Such a bullet-speed duplicate @Henry! $\endgroup$– Jaideep KhareCommented Apr 9, 2017 at 22:07
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$\begingroup$ @JaideepKhare If it is a classic question with no effort from the person asking, it seems simple enough $\endgroup$– HenryCommented Apr 9, 2017 at 22:12
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