One of four children took a cake. Alex says: "Bea or Cy took it." Bea says: "Dee took it." Cy says: "I did not take it." Dee says: "Alex took it." Exactly 1 of these four statements is true. Who took the cake?

Answer and explanation

Correct answer: D. Cy

  1. Step 1: Try each child as the one who took the cake, and count how many of the four statements would then be true. Step 2. Only when Cy took it is exactly 1 statement true. Step 3. The answer is Cy. Answer: Cy. Why not the others: Alex: This makes 2 statements true, not 1. Bea: This makes 2 statements true, not 1. Dee: This makes 2 statements true, not 1.

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