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    gauravk_newton's Avatar
    gauravk_newton Posts: 9, Reputation: 1
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    #1

    Jan 31, 2009, 10:29 AM
    Passenger Probability
    A line of 100 airline passengers is waiting to board an aeroplane. They each have a ticket to one of the 100 seats of that flight. (For convenience, let's suppose that the kth passenger in the line has a ticket for the seat number k.) Unfortunately, the first person in line of these 100 passengers is crazy, and will ignore the seat number on the ticket, picking up a random seat to occupy. All the other 99 passengers are quite normal, and will go to their proper seat unless it is already occupied. If it is occupied, then they will search for a free seat to sit in, at random. What is the probability that the last (100th) person in the line to board the plane will sit in his/her proper seat (#100)?
    tickle's Avatar
    tickle Posts: 23,796, Reputation: 2674
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    #2

    Jan 31, 2009, 11:01 AM

    Puzzles are not the purpose of this forum. If you have a legitimate question, then ask it. This is not that kind of question.

    Ms tickle
    sarnian's Avatar
    sarnian Posts: 462, Reputation: 9
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    #3

    Jan 31, 2009, 07:49 PM
    Is this perhaps homework? There is a homework board on the education board.
    If so : how do you intent to approach this question yourself?
    Once you answer that, we'll take it from there !
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #4

    Feb 2, 2009, 09:48 AM

    1/2. Can you see why?

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