7. A says "We are both knaves" and B says nothing.
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.6: Permutations And Combinations
Problem 5SC: In how many ways can 5 people stand in a line if one person demands to be first?
Related questions
Question
relate to inhabitants of the island of knights
and knaves created by Smullyan, where knights always tell the
truth and knaves always lie. You encounter two people, A and
B. Determine, if possible, what A and B are if they address you
in the ways described. If you cannot determine what these two
people are, can you draw any conclusions?
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