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A machine shifts a line of numbers; in each step the number at the left end moves to the right end and the rest shift one place left. Input: 5 8 3 6 1. Step I: 8 3 6 1 5. Step II: 3 6 1 5 8. At which step will the line read 1 5 8 3 6?

Competition practiceInput-Output
  • AStep IV
  • BStep V
  • CStep III
  • DStep II

Step-by-Step Solution

Continuing the left rotation: Step III is 6 1 5 8 3 and Step IV is 1 5 8 3 6, which matches the target.
Answer: A) Step IV

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