11. Three people (X, Y, Z) are in a room with you. One is a knight (knights always tell the truth), one is a knave(knaves always lie), and the other is a spy (spies may either lie or tell the truth). X says, "I am the knight." Y says,"X isn't lying." Z says, "I am the spy." Which of the following correctly identifies all three people?E.X is the knave.Y is the spy.Z is the knight.В.С.D.А.X is the knightY is the spy.Z is the knave.X is the spy.X is the knight.X is the knave.Y is the knight.Z is the spy.Y is the knave.Y is the knave.Z is the knight.Z is the spy.

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Answered: 11. Three people (X, Y, Z) are in a…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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