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A number-arranging machine moves the largest remaining number to the front at each step. Example — Input: 15 82 47 63 29; Step I: 82 15 47 63 29; Step II: 82 63 15 47 29. Using the same rule, what will Step III be?

Competition practiceInput-Output
  • A82 63 47 29 15
  • B82 63 15 29 47
  • C82 63 47 15 29
  • D82 63 29 47 15

Step-by-Step Solution

After Step II the placed part is 82 63 and the rest is 15 47 29; the next largest, 47, moves to third place, giving 82 63 47 15 29.
Answer: C) 82 63 47 15 29

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