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VTMO 2026 - Grade 5 - Semifinal - SET 11 - Self-study Question 20

VTMO · VTMO 2026 - Grade 5 - Semifinal - SET 11 - Self-study

Question 20

Exactly one of An, Bình and Châu always tells the truth.
An says, “Bình does not always tell the truth.”
Bình says, “I do not always tell the truth.”
Châu says, “An does not always tell the truth.”
At least one of these three statements is false. Which friend always tells the truth? Explain.

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