You are on an island with two tribes. One tribe always tells the truth, and the other tribe always lies. You meet three individuals from the island: A, B and C. Each individual belongs to one of the tribes. You ask each of them the same question: "Is B a truth-teller?"
A says, "Yes, B is a truth-teller."
B says, "No, I am not a truth-teller."
C says, "B is a liar."
You are on an island with two tribes. One tribe always tells the truth, and the other tribe always lies. You meet three individuals from the island: A, B and C. Each individual belongs to one of the tribes. You ask each of them the same question: "Is B a truth-teller?"
A says, "Yes, B is a truth-teller."
B says, "No, I am not a truth-teller."
C says, "B is a liar."
Show Hint
- Both B and C
- A only
- C only
- B only
The Correct Option is C
Solution and Explanation
Step 1: Analyze B's statement.
B says, "No, I am not a truth-teller." If B were telling the truth, then he wouldn't be a truth-teller, which is a contradiction.
Hence, B is lying, so B is a liar.
Step 2: Analyze A's statement.
A says B is a truth-teller. But we just proved B is a liar, so A must be lying too.
Step 3: Analyze C's statement.
C says B is a liar. That’s a true statement, so C must be a truth-teller.
Conclusion: C is telling the truth; A and B are lying.
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