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AMO 2027 Grades 4-5 SET 24 - Self-study Question 12

AMO · AMO 2027 Grades 4-5 SET 24 - Self-study

Question 12

Henry, Charlie and Daisy were classmates. One of them cleaned up the classroom one day while there was nobody around. Below were their replies when the teacher questioned about who cleaned up the classroom.

• Henry: ”Charlie cleaned the classroom.”

• Charlie: ”I did not do it.”

• Daisy: ”Neither did I.”

If one of them was telling the truth, find out who cleaned up the classroom.

Interpret “one” as exactly one true statement. Enter the name only: Henry, Charlie or Daisy.