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• 2022 AIME I Problems/Problem 9
  Ellina has twelve blocks, two each of red (<math>\textbf{R}</math>), blue (<math>\ is even. Ellina arranges her blocks in a row in random order. The probability that her arra
  3 KB (481 words) - 18:31, 31 January 2024
• 2022 AIME I Problems
  Ellina has twelve blocks, two each of red (<math>\textbf{R}</math>), blue (<math>\ is even. Ellina arranges her blocks in a row in random order. The probability that her arra
  9 KB (1,520 words) - 18:06, 2 January 2023