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De Ja True? (Posted on 2007-09-29) Difficulty: 3 of 5
Alex, Bert, and Carl are each a knight, knave or a liar. Three people asked them what their types were.

The first person got the following responses:
Alex:Carl is a liar.
Bert:Alex is a knight.
Carl:Bert is a knave.

The second person got the following responses but forgot who made which ones:
Exactly one of us is a knight.
Exactly one of us is a knave.
Exactly one of us is a liar.
(Alex, Bert, and Carl each made one of the statements.)

The third person got the following responses:
Alex:Bert is a knave.
Bert:Carl is a liar.
Carl:Alex is a knight.

What types are Alex, Bert, and Carl?

See The Solution Submitted by Brian Smith    
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Comments: ( You must be logged in to post comments.)
  Subject Author Date
answerK Sengupta2007-09-30 05:28:58
SolutionSolutionhoodat2007-09-30 00:04:13
re: I got itPenny2007-09-29 17:05:36
I got itRaymond2007-09-29 16:28:34
Solutioncomputer program usedCharlie2007-09-29 16:19:40
SolutionSolutionPenny2007-09-29 12:55:04
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