Direction: Answer the questions based on the following information. A number arrangement machine, when given a particular input, rearranges it following a particular rule. Illustrations of the input and the steps of arrangement is given below.
Input : 245, 316, 436, 519, 868, 710, 689
Step 1: 710, 316, 436, 519, 868, 245, 689
Step 2: 710, 316, 245, 519, 868, 436, 689
Step 3: 710, 316, 245, 436, 868, 519, 689
Step 4: 710, 316, 245, 436, 519, 868, 689
Step 4 is the last step for the given input.
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Step third for an input is – 432, 433, 542, 666, 734, 355, 574
What will be the first step for the input?
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- 666, 542, 432, 734, 433, 574, 355
- 542, 666, 734, 432, 433, 574, 355
- 355, 574, 433, 432, 734, 666, 542
- Cannot be determined
Correct Option: D
In this type of question backward progress is not a right approach as the number whose sum is smallest interchange its position, and there is only one shift per step hence given any step we can not determine the input.
