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AMO 2027 Grades 8-9 SET 8 - Self-study Question 12

AMO · AMO 2027 Grades 8-9 SET 8 - Self-study

Question 12

Albert, Bernard, Cindy and David look at a number. Then, they give following statements.

- Albert: This is a square number.
- Bernard: The sum of its digit is 48.
- Cindy: This number is divisible by 9.
- David: 10201 times of this number is also a square number.

It is known that three of the four statements above are correct. Who gives incorrect statement?