[lit-ideas] Re: Try a Logic Problem

• From: wokshevs@xxxxxx
• To: lit-ideas@xxxxxxxxxxxxx
• Date: Thu, 22 Jun 2006 17:45:52 -0230

```I had a hell of a time getting this message through to the List due to our
university spam filter. I think the words "bored and lonely" caught it's eye.
Trying once again. Cheers,

> > Here, as promised, for all the bored and lonely souls, is a problem I
> > offer my students. I often get e-mail
> > requests years after the  course from students who have forgotten the
> > solution and desperately need it for their Saturday evening escapades and
> > reflections. I am informed that some have made quick money in pubs with it
> > and/or gotten lucky in some other manner. However, I ask for no
> > commission.
> >
> >
> > A guard tells his 3 prisoners: "Gentlemen, I have here 3 white hats and 2
> > red hats. I shall place one hat on each of your heads, but you won't know
> > which hat is on your own head. Whoever among you can tell me the colour of
> > the hat he's wearing, will be granted an amnesty." The prisoners
> > immediately  agree. So the guard places one hat on each of the 3
> > prisoners' heads and  puts the other 2 away. None of the inmates know
> > which hats were put away and none of the inmates has seen which colored
> > hat was placed on his own head.
> >
> > The guard now asks prisoner #1 "Can you tell me the colour of the hat
> > you're wearing. The prisoner responds "No, I cannot."
> >
> > The guard then asks prisoner #2 the same question and he receives the same
> >
> > Finally, the guard asks prisoner #3 and prisoner #3 replies that he does
> > indeed know the colour of the hat he's wearing.
> >
> > The problem, should you decide to accept it, is: what is the colour of the
> > hat #3 is wearing, and more importantly, in logic as in love, how did he
> > figure it out?
> >
> > I forgot to mention one small detail here. Prisoner #3 is completely
> > blind.  This is a problem in strict logic, nothing up my sleeves, Rocky.
> >
> > Enjoy!
> >
> > We of coure need a prize for the winning solution, should there be one.
> > Suggestions? Solutions may be judged communally (i.e., David tells John
> > his solution fails at step 5 and why.) This is beginning to look like a
> > Web-CT course.
> >
> > Walter O.
> > Department of Logic and Long Gun Registery
> > Ministry of Tourism and Recreation
> > Ottawa, Ontario
> >
>

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