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AMO 2021 – Junior College (Grades 11–12) Question 14

AMO · AMO 2021 – Junior College (Grades 11–12)

Question 14

Continue the hexagonal dot pattern shown. How many dots are in the 99th shape?

Question illustration
  1. $18900$
  2. $19900$
  3. $20301$
  4. $20706$
  5. $16110$