English and Logical Reasoning Prep Guide
- Exam
- English and Logical Reasoning Prep Guide
- Subject
- Logical Reasoning
- Chapter
- Puzzles
English and Logical Reasoning Prep Guide · Logical Reasoning · Puzzles
Directions (Q. 6-12): Study the following information to answer the...
Directions (Q. 6-12): Study the following information to answer the given questions.
A number arrangement machine when given an input of numbers, rearranges them following a particular rule in each step. The following is an illustration of input and steps of rearrangement.
Input:
Step I:
Step II:
Step III:
Step IV:
Step V:
This is the final arrangement and Step V is the last
step for this input. Following is the step IV for an input. What will be the first step for the input?
Options
- A115, 47, 726, 19, 537, 33, 412, 315, 81
- B537, 19, 726, 412, 33, 315, 115, 47, 81
- C33, 412, 315, 726, 19, 537, 115, 47, 81
- DCannot be determined
Correct answer
D. Cannot be determined
Step-by-step solution
Here the rule followed is: The numbers are getting arranged in alternate series; one in descending order and the other in ascending order.
Step I: The largest of the given numbers comes to the place of first number and the rest shift rightward.
Step II: The smallest of the given numbers comes to the place of second number and the rest shift rightward.
Step III: The second largest of the given numbers comes to the place of third number and the rest shift rightward.
Step IV: The second smallest of the given numbers comes to the place of fourth number and the rest shift rightward and so on until the alternate series is formed. Previous step can't be determined.