Double Side Arrangement Problems


Machine Input - Concepts
Class - RRB Technician Grade I Signal Subjects
 
 
Concept Explanation
 

Double Side Arrangement Problems

Arranagement Type:- In this type of questions, the words or the numbers are arranged as per a fixed pattern. This pattern can be an alphabetical order in case of words, it can be an increasing or decreasing order in case of numbers.

How to identify whether the given input is of shifting or arrangement?

The basic difference between them are that the shifting goes on endlessly and at last it is written and so on and in arrangement arranging ends as soon as the order intended is achieved I.e., arrangement type of questions has last step.

Arrangement is of two types.

1. Single side arrangement.                                       2. Double side arrangement.

Double Side Arrangement : From the above examples we have seen the type of arrangement now let's see the type of logic as it can be alphabetical, numerical, alpha-numerical etc. Let's understand it with the below diagram.

  • Based on vowel
  • Based on consonant
  • Based on increasing number
  • Based on decreasing number
  • Based on number of letters in given word
  • Based on odd number
  • Based on even number
  • Based on alphabetical order
  • Based on reverse alphabetical order
  • Based on square of number
  • Based on cube of number
  • Tricks Regarding Arrangement:

  • In questions on arrangement when any step is given and input is asked answer will be "cant be determined".
  • To identify the pattern in question prefer the last step.
  • In this type of question when words all of sudden get transformed in number then the numbers most of the time comes from the place value of first or last letter of the word.
  • In arrangement problems, the contents of an earlier step can never be determined with certainly.
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    Illustration: Study the following information carefully and answer the questions given below. A number arrangement machine, when given a particular input, rearranges it following a particular rule. The following is the illustration of the input and the steps of arrangement.

    Input: 39 55 19 20 37 41 68 53

    Step I: 19 39 55 37 41 68 53 20

    Step II: 19 37 55 41 68 53 20 39

    Step Ill: 19 37 41 68 53 20 39 55

    Step IV: 19 37 41 53 20 39 55 68

    Step V: 21 34 43 50 22 36 57 65

    desired arrangement is obtained. As per rules followed in the above steps, find out the appropriate step for the given input.

    Input: 25 58 47 33 23 73 64 61

    Which of the following is step V of the given input?

    A. 25 27 61 63 70 30 44 62                             B. 25 44 63 70 27 30 62 61

    C. 25 44 63 70 27 30 60 61                             D. 25 44 63 70 27 60 61 30

    E. None of these

    Answer: C

    Solution: on analysing the steps we find that

    Step I-Step IV: Prime numbers are arranged in ascending order from the left end and other numbers are arranged from the right end.

    Step V: +2, -3, +2, -3.

    Input: 25 58 47 33 23 73 64 61

    Step I: 23 58 47 33 73 64 61 25

    Step II: 23 4758 73 64 61 25 33

    Step IlI: 23 47 61 73 64 25 33 58

    Step IV: 23 47 61 73 25 33 58 64

    Step V: 25 44 63 70 27 30 60 61

    Hence the correct option is C.

    Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    A word and number arrangement machine when given an input line of words and numbers rearranges them following a particular rule in every step. The following is an illustration of input and rearrangement.

    Input - 61 always 19 regular 5 occasionally 51 usually zebra 91.

    Step - I.  occasionally 61 always regular 5 51 usually zebra 91 19

    Step - II. usually occasionally always regular 5 51 zebra 91 19 61

    Step - III. always usually occasionally zebra 91 19 61 5

    Step - IV. regular always occasionally zebra 91 19 61 5 51

    Step - V. Zebra regular always usually occasionally 19 61 5 51 91

    Step V is last step.

    As per the rules followed in the above steps, find out in each of the following questions the appropriate step for the given input.

    Input : 72 magnet 20 table for 81 people 31 vibgyor 9

    Which word/number would be on fourth position from left end in step III ?

    Right Option : C
    View Explanation
    Explanation
    Question : 2

    Study the following information carefully and answer the questions given below. A number arrangement machine, when given a particular input, rearranges it following a particular rule. The following is the illustration of the input and the steps of arrangement.

    Input : telecom turtle tares 225 64 toll 49 81 treason 256

    Step I : tares telecom turtle 225 64 toll 81 treason 256 49

    Step II : tares telecom toll turtle 225 81 toll 81 treason 256 49 64

    Step III : tares telecom toll treason turtle 225 256 49 64 81

    Step IV : tares telecom toll treason turtle 226 49 64 81 225

    Step V : tares telecom toll treason turtle 49 64 81 225 256

    Step VI : 19 13 12 14 5 7 8 9 15 16

    Step VII : 1 3 4 5 5 7 7 8 9

    Step VII :  1 3 4 5 5 7 7 8 9

    Step VII is the last step of the above input arrangement.

    As per rules followed in the the above steps, find out in the following question the appropriate step for the given input.

    Input : shadow shad 100 324 shack shabby 441 676 snake 289 squad 841

    Which of the following steps will be the last one for the above Input ?

    Right Option : D
    View Explanation
    Explanation
    Question : 3

    A word and number arrangement machine when given an input line of words and numbers rearranges them following a particular rule in every step. The following is an illustration of input and rearrangement.

    Input - 61 always 19 regular 5 occasionally 51 usually zebra 91.

    Step - I.  occasionally 61 always regular 5 51 usually zebra 91 19

    Step - II. usually occasionally always regular 5 51 zebra 91 19 61

    Step - III. always usually occasionally zebra 91 19 61 5

    Step - IV. regular always occasionally zebra 91 19 61 5 51

    Step - V. Zebra regular always usually occasionally 19 61 5 51 91

    Step V is last step.

    As per the rules followed in the above steps, find out in each of the following questions the appropriate step for the given input.

    Input : 72 magnet 20 table for 81 people 31 vibgyor 9.

    Which step number would be the following output ?

    people for table magnet 81 vibgyor 20 72 9 31.

    Right Option : B
    View Explanation
    Explanation
     
     
     


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