Professor Z was killed by one of his four students, who was helped by another of the four. His students declared:
A: If B is guilty of something, then C must be innocent.
B: If A is innocent, then C must be guilty.
C: If B was the killer, then D must have had nothing to do with the crime.
D: I am innocent.
As everybody should know, guilty parties always lie, and innocent people always tell the truth. Who killed the professor, and who was his accomplice?
(In reply to
solution by paul)
When someone says "If XXX then YYY", and XXX is false, it doesn't
follow that YYY is also false. Your argument "C says if b was the
killer D had nothing to do with it but B is innocent so D had something
to do with it" isn't correct.
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Posted by e.g.
on 2004-03-09 14:48:09 |
re: solution
