Answer
:
Kim
Jong Un is the flight attendant.
Deductions:
We
know that the co-pilot
doesn’t live in Davos (2) and that his nearest neighbor is a
passenger (4).
That
passenger can’t be
Mr.Trudeau, who lives in Davos (1).
From
(3) and (4) we know that
the co-pilot’s nearest neighbor also can’t be
Mr.Trump
(because Mr. Trump has $2,000 in his wallet, which is not evenly
divisible by 3).
Thus, if the
co-pilot’s nearest
neighbor is not Mr.Trump and not Mr.Trudeau, it must be Kim Jong Un.
Now,
if Mr.Trudeau lives in
Davos (1) and Kim Jong Un lives halfway between Cornwall and Davos (as
we’ve just deduced), then the third passenger, Mr.Trump, must
be
the one referred to in (6) and thus lives in Cornwall.
That
means, also from (6), that
the co-pilot’s name is Trump.
And if Kim Jong Un is not the pilot (5), then by elimination Kim Jong
Un must
be the flight attendant.
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