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A word-and-number arrangement machine rearranges any input line in steps. In each step two shifts happen together: the largest number that has not already been shifted in an earlier step is taken out and placed at the extreme right end of the line, and at the same time the word that comes last in alphabetical order among the words not already shifted in an earlier step is taken out and placed at the extreme left end of the line. All the remaining elements keep their relative order, and the machine stops when no further shift is possible.
Input: 69 pond 31 queen 85 road 52 silk.
Which of the following is Step 2 of the above arrangement?

Competition practiceInput-Output
  • Aqueen road silk pond 31 85 69 52
  • Bsilk 69 pond 31 queen road 52 85
  • Cqueen pond 69 85 road silk 31 52
  • Droad silk pond 31 queen 52 85 69

Step-by-Step Solution

Work the machine forward from the input. Step 1: silk 69 pond 31 queen road 52 85. Step 2: road silk pond 31 queen 52 85 69. Hence the line shown is Step 2.
Answer: D) road silk pond 31 queen 52 85 69

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