Question

100 passengers are boarding an airplane with 100 seats. everyone has a ticket with his seat number. these 100 passengers boards the airplane in order. however, the first passenger lost his ticket so he just take a random seat. for any subsequent passenger, he either sits on his own seat or, if the seat is taken, he takes a random empty seat. what's the probability that the last passenger would sit on his own seat?

Answer 1

1/100 is the probablity that the last passenger would seat on his own seat