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Home > Logic > Liars and Knights
Type deduction (Posted on 2011-12-24) Difficulty: 3 of 5
Each of the three girls Francine, Gertrude and Harriet are either knights who always tell the truth or liars who always tell a lie.

Francine says, "Either I belong or Gertrude belongs to a different type from the other two."

Whose type can you deduce with absolute certainty?

  Submitted by K Sengupta    
Rating: 4.5000 (2 votes)
Solution: (Hide)
Gertrude is a liar.

For an explanation, refer to the solution posted by Math Man in this location.

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionsolutionCharlie2011-12-24 18:14:30
SolutionAnswerMath Man2011-12-24 13:50:04
SolutionAnswerMath Man2011-12-24 13:50:04
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