Question 13
In an interview, three friends An, Binh, and Cuong made the following statements:
- An: “Binh is lying.”
- Binh: “Cuong is lying.”
- Cuong: “Both An and Binh are lying.”
Knowing that only one person tells the truth and the other two lie, and that truthful people always speak correctly while liars always speak incorrectly, who is telling the truth?
- An: “Binh is lying.”
- Binh: “Cuong is lying.”
- Cuong: “Both An and Binh are lying.”
Knowing that only one person tells the truth and the other two lie, and that truthful people always speak correctly while liars always speak incorrectly, who is telling the truth?