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Test Level 3: Input-Output - CAT MCQ


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10 Questions MCQ Test Level-wise Tests for CAT - Test Level 3: Input-Output

Test Level 3: Input-Output for CAT 2024 is part of Level-wise Tests for CAT preparation. The Test Level 3: Input-Output questions and answers have been prepared according to the CAT exam syllabus.The Test Level 3: Input-Output MCQs are made for CAT 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test Level 3: Input-Output below.
Solutions of Test Level 3: Input-Output questions in English are available as part of our Level-wise Tests for CAT for CAT & Test Level 3: Input-Output solutions in Hindi for Level-wise Tests for CAT course. Download more important topics, notes, lectures and mock test series for CAT Exam by signing up for free. Attempt Test Level 3: Input-Output | 10 questions in 20 minutes | Mock test for CAT preparation | Free important questions MCQ to study Level-wise Tests for CAT for CAT Exam | Download free PDF with solutions
Test Level 3: Input-Output - Question 1
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Directions: Study the following information carefully and answer the given question.

When a word and number arrangement machine is given an input line of words and numbers, it arranges them following a particular rule. The following is an illustration of input and rearrangement.

Input: engineer 30 marble famous 41 52 seven 61 rough 36 89 jump
Step 1: engineer famous 30 marble 41 52 seven 61 rough 36 89 jump
Step 2: engineer famous 89 61 30 marble 41 52 seven rough 36 jump
Step 3: engineer famous 89 61 jump marble 30 41 52 seven rough 36
Step 4: engineer famous 89 61 jump marble 52 41 30 seven rough 36
Step 5: engineer famous 89 61 jump marble 52 41 rough seven 30 36
Step 6: engineer famous 89 61 jump marble 52 41 rough seven 36 30

Step 6 is the last step of the above input.

Now, as per the rules followed in the above steps, answer the given question based on the following input:
Input: bone 11 alluring 25 major 47 81 enough 49 simple 16 anxious

Q. Which of the following terms exactly comes between '49' and 'enough' in Step 3?

Detailed Solution for Test Level 3: Input-Output - Question 1

Input: bone 11 alluring 25 major 47 81 enough 49 simple 16 anxious
Step 1: alluring anxious bone 11 25 major 47 81 enough 49 simple 16
Step 2: alluring anxious 81 49 bone 11 25 major 47 enough simple 16
Step 3: alluring anxious 81 49 bone enough 11 25 major 47 simple 16
Step 4: alluring anxious 81 49 bone enough 47 25 11 major simple 16
Step 5: alluring anxious 81 49 bone enough 47 25 major simple 11 16
Step 6: alluring anxious 81 49 bone enough 47 25 major simple 16 11
Rule: In Step 1, two words are picked and arranged in alphabetical order and placed at the left corner and in Step 2, two numbers are picked and arranged in descending order, next to the words arranged in alphabetical order and so on.

Test Level 3: Input-Output - Question 2
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Directions: Study the following information carefully and answer the given question.
A word and number arrangement machine, when given an input line of words and numbers, rearranges them following a particular rule in each step. The following is an illustration of input and rearrangement.

Input: sky to 18 23 seven hardwork 24 animal 11 62
Step 1: 11 to sky 18 23 seven hardwork 24 animal 62
Step 2: 23 sky 11 to 18 seven hardwork 24 animal 62
Step 3: 24 seven 23 sky 11 to 18 hardwork animal 62
Step 4: 62 animal 24 seven 23 sky 11 to 18 hardwork
Step 5: 18 hardwork 62 animal 24 seven 23 sky 11 to

As per the rules followed in the steps given above, answer the question based on the input given below.
Input: 92 fight 66 purple 12 snow starwar 42 nightmare examples 78 celebrating 37 hardworker 52 88

Q. How many steps are required to complete the arrangement after the step given below?
92 examples 37 starwar 52 purple 42 fight 12 snow 66 nightmare 78 celebrating hardworker 88

Detailed Solution for Test Level 3: Input-Output - Question 2

Input: 92 fight 66 purple 12 snow starwar 42 nightmare examples 78 celebrating 37 hardworker 52 88
Numbers are aligned according to the sum of the digits and words are aligned according to the number of letters.

Step 1: 12 snow 92 fight 66 purple starwar 42 nightmare examples 78 celebrating 37 hardworker 52 88
Step 2: 42 fight 12 snow 92 66 purple starwar nightmare examples 78 celebrating 37 hardworker 52 88
Step 3: 52 purple 42 fight 12 snow 92 66 starwar nightmare examples 78 celebrating 37 hardworker 88
Step 4: 37 starwar 52 purple 42 fight 12 snow 92 66 nightmare examples 78 celebrating hardworker 88
Step 5: 92 examples 37 starwar 52 purple 42 fight 12 snow 66 nightmare 78 celebrating hardworker 88
Step 6: 66 nightmare 92 examples 37 starwar 52 purple 42 fight 12 snow 78 celebrating hardworker 88
Step 7: 78 hardworker 66 nightmare 92 examples 37 starwar 52 purple 42 fight 12 snow celebrating 88
Step 8: 88 celebrating 78 hardworker 66 nightmare 92 examples 37 starwar 52 purple 42 fight 12 snow

Step 5 is given in the question. Three more steps are required to complete the arrangement.

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Test Level 3: Input-Output - Question 3
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Directions: Study the following information carefully and answer the question given below.

A word and number arrangement machine, when given an input line of words and numbers, rearranges them following a particular rule.

Following is an illustration of input and the rearrangement:

Input: each still 59 home 78 18 money 43 with 28 97 zoo
Step I: 97 each still 59 home 78 18 money 43 with 28 zoo
Step II: 97 zoo each still 59 home 78 18 money 43 with 28
Step III: 97 zoo 78 each still 59 home 18 money 43 with 28
Step IV: 97 zoo 78 with each still 59 home 18 money 43 28
Step V: 97 zoo 78 with 59 each still home 18 money 43 28
Step VI: 97 zoo 78 with 59 still each home 18 money 43 28
Step VII: 97 zoo 78 with 59 still 43 each home 18 money 28
Step VIII: 97 zoo 78 with 59 still 43 money each home 18 28
Step IX: 97 zoo 78 with 59 still 43 money 28 each home 18
Step X: 97 zoo 78 with 59 still 43 money 28 home each 18
Step XI: 97 zoo 78 with 59 still 43 money 28 home 18 each
Step XI is the last step of the arrangement of the above input as the intended arrangement is obtained.

As per the rules followed in the above steps, answer the question that follows based on the input given below:

Input: long done 37 gang 51 young 107 63 tin 25 vehicle 89

Q. How many steps would be needed to complete this arrangement?

Detailed Solution for Test Level 3: Input-Output - Question 3

After a careful analysis of the given input and various steps of rearrangement, it is evident that the words and numbers are rearranged alternately. The words are arranged in reverse alphabetical order and the numbers are arranged in descending order.

Input: long done 37 gang 51 young 107 63 tin 25 vehicle 89
Step I: 107 long done 37 gang 51 young 63 tin 25 vehicle 89
Step II: 107 young long done 37 gang 51 63 tin 25 vehicle 89
Step III: 107 young 89 long done 37 gang 51 63 tin 25 vehicle
Step IV: 107 young 89 vehicle long done 37 gang 51 63 tin 25
Step V: 107 young 89 vehicle 63 long done 37 gang 51 tin 25
Step VI: 107 young 89 vehicle 63 tin long done 37 gang 51 25
Step VII: 107 young 89 vehicle 63 tin 51 long done 37 gang 25
Step VIII: 107 young 89 vehicle 63 tin 51 long 37 done gang 25
Step IX: 107 young 89 vehicle 63 tin 51 long 37 gang done 25
Step X: 107 young 89 vehicle 63 tin 51 long 37 gang 25 done

It needs ten steps to complete.

Test Level 3: Input-Output - Question 4
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Directions: The given question is on the basis of following information.

A number and word arrangement machine, when given an input line of words and numbers, re-arranges them by undertaking a specific rule in every step. Given below is the illustration of an input and its steps of re-arrangement.

Input: 8 Camera 3 12 Stardom Umbrella 11 Orange 21 23 Public Apple
Step I - Apple 3 8 Camera 12 Stardom Umbrella 11 Orange 21 23 Public
Step II - Apple 3 8 Camera 12 Umbrella 11 Orange 23 Public Stardom 21
Step III - Apple 3 Orange 11 8 Camera 12 Umbrella 23 Public Stardom 21
Step IV - Apple 3 Orange 11 8 Camera Umbrella 23 Public 12 Stardom 21
Step V - Apple 3 Orange 11 Umbrella 23 8 Camera Public 12 Stardom 21
Step VI - Apple 3 Orange 11 Umbrella 23 Camera 8 Public 12 Stardom 21
Here, step VI is the final step of the given input.

Input for the question is given below:

Input: Ice-cream 18 Elephant 6 31 Brain 12 Praise Owl 13 23 Train

Q. What will be the product of the first number from both ends in step V?
Detailed Solution for Test Level 3: Input-Output - Question 4

Distribution of words in the given input is as follows.
Words initiating with a vowel - Apple, Orange and Umbrella
Consonants - Camera, Public and Stardom
Prime numbers - 3, 11 and 23
Composite numbers - 8, 12 and 21
The re-arrangement of this input is done using the following logic.
Step 1 - Vowel + smallest prime number at start (Apple 3)
Step 2 - Consonant + largest composite number at last (Stardom 21)
Step 3 - Next vowel + next prime number (Orange 11) and the process continues till step 6.
So, the re-arrangement for the asked Input - Ice-cream 18 Elephant 6 31 Brain 12 Praise Owl 13 23 Train:

Step 1 - Elephant 13 Ice-cream 18 6 31 Brain 12 Praise Owl 23 Train
Step 2 - Elephant 13 Ice-cream 6 31 Brain 12 Praise Owl 23 Train 18
Step 3 - Elephant 13 Ice-cream 23 6 31 Brain 12 Praise Owl Train 18
Step 4 - Elephant 13 Ice-cream 23 6 31 Brain Owl Praise 12 Train 18
Step 5 - Elephant 13 Ice-cream 23 Owl 31 6 Brain Praise 12 Train 18
Step 6 - Elephant 13 Ice-cream 23 Owl 31 Brain 6 Praise 12 Train 18
The numbers are 13 and 18 and the product is 234.

Test Level 3: Input-Output - Question 5
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Directions: The given question is on the basis of following information.

A number and word arrangement machine, when given an input line of words and numbers, re-arranges them by undertaking a specific rule in every step. Given below is the illustration of an input and its steps of re-arrangement.

Input: 8 Camera 3 12 Stardom Umbrella 11 Orange 21 23 Public Apple
Step I - Apple 3 8 Camera 12 Stardom Umbrella 11 Orange 21 23 Public
Step II - Apple 3 8 Camera 12 Umbrella 11 Orange 23 Public Stardom 21
Step III - Apple 3 Orange 11 8 Camera 12 Umbrella 23 Public Stardom 21
Step IV - Apple 3 Orange 11 8 Camera Umbrella 23 Public 12 Stardom 21
Step V - Apple 3 Orange 11 Umbrella 23 8 Camera Public 12 Stardom 21
Step VI - Apple 3 Orange 11 Umbrella 23 Camera 8 Public 12 Stardom 21
Here, step VI is the final step of the given input.

Input for the question is given below:

Input: Ice-cream 18 Elephant 6 31 Brain 12 Praise Owl 13 23 Train

Q. In step 3, which of the following elements is fourth to the left of seventh element from the right end?
Detailed Solution for Test Level 3: Input-Output - Question 5

Distribution of words in the given input is as follows.
Words initiating with a vowel - Apple, Orange and Umbrella
Consonants - Camera, Public and Stardom
Prime numbers - 3, 11 and 23
Composite numbers - 8, 12 and 21
The re-arrangement of this input is done using the following logic.
Step 1 - Vowel + smallest prime number at start (Apple 3)
Step 2 - Consonant + largest composite number at last (Stardom 21)
Step 3 - Next vowel + next prime number (Orange 11) and the process continues till step 6.
So, the re-arrangement for the asked Input - Ice-cream 18 Elephant 6 31 Brain 12 Praise Owl 13 23 Train:

Step 1 - Elephant 13 Ice-cream 18 6 31 Brain 12 Praise Owl 23 Train
Step 2 - Elephant 13 Ice-cream 6 31 Brain 12 Praise Owl 23 Train 18
Step 3 - Elephant 13 Ice-cream 23 6 31 Brain 12 Praise Owl Train 18
Step 4 - Elephant 13 Ice-cream 23 6 31 Brain Owl Praise 12 Train 18
Step 5 - Elephant 13 Ice-cream 23 Owl 31 6 Brain Praise 12 Train 18
Step 6 - Elephant 13 Ice-cream 23 Owl 31 Brain 6 Praise 12 Train 18
So, in step 3, element '13' is fourth to the left of the seventh element (31) from the right end.

Test Level 3: Input-Output - Question 6
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Directions: The given question is on the basis of following information.

A number and word arrangement machine, when given an input line of words and numbers, re-arranges them by undertaking a specific rule in every step. Given below is the illustration of an input and its steps of re-arrangement.

Input: 58 Education 42 Rid 17 Mountain Cinema 23 Complex 6
Step I - Rid 58 Education 42 17 Mountain Cinema 23 Complex 6
Step II - Rid 8 58 Education 42 17 Mountain Cinema 23 Complex
Step III - Rid 8 Complex 58 Education 42 17 Mountain Cinema 23
Step IV - Rid 8 Complex 15 58 Education 42 Mountain Cinema 23
Step V - Rid 8 Complex 15 Cinema 58 Education 42 Mountain 23
Step VI - Rid 8 Complex 15 Cinema 25 58 Education 42 Mountain
Step VII - Rid 8 Complex 15 Cinema 25 Mountain 58 Education 42
Step VIII - Rid 8 Complex 15 Cinema 25 Mountain 40 58 Education
Step IX - Rid 8 Complex 15 Cinema 25 Mountain 40 Education 58
Step X - Rid 8 Complex 15 Cinema 25 Mountain 40 Education 60
Here, step X is the final step of the given input.

Input for the question is given below.
Input: 66 Automobile 52 Gram 27 Reduction Income 33 Transport 18

Q. Which of the following will be the third step of the given input?
Detailed Solution for Test Level 3: Input-Output - Question 6

The re-arrangement of the input is done in the following way.
In steps I, III, V, VII and IX, the words with increasing number of vowels are arranged one by one in ascending order.
In steps II, IV, VI, VIII and X, 2 is added to the smallest number, 2 is subtracted from the next number, again 2 is added to the next number and so on.

So, the re-arrangement for given input will be -
Step I - Gram 66 Automobile 52 27 Reduction Income 33 Transport 18
Step II - Gram 20 66 Automobile 52 27 Reduction Income 33 Transport
Step III - Gram 20 Transport 66 Automobile 52 27 Reduction Income 33
Step IV - Gram 20 Transport 25 66 Automobile 52 Reduction Income 33
Step V - Gram 20 Transport 25 Income 66 Automobile 52 Reduction 33
Step VI - Gram 20 Transport 25 Income 35 66 Automobile 52 Reduction
Step VII - Gram 20 Transport 25 Income 35 Reduction 66 Automobile 52
Step VIII - Gram 20 Transport 25 Income 35 Reduction 50 66 Automobile
Step IX - Gram 20 Transport 25 Income 35 Reduction 50 Automobile 66
Step X - Gram 20 Transport 25 Income 35 Reduction 50 Automobile 68

The third step of given input is - Gram 20 Transport 66 Automobile 52 27 Reduction Income 33

Test Level 3: Input-Output - Question 7
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Directions: The given question is on the basis of following information.

A number and word arrangement machine, when given an input line of words and numbers, re-arranges them by undertaking a specific rule in every step. Given below is the illustration of an input and its steps of re-arrangement.

Input: 58 Education 42 Rid 17 Mountain Cinema 23 Complex 6
Step I - Rid 58 Education 42 17 Mountain Cinema 23 Complex 6
Step II - Rid 8 58 Education 42 17 Mountain Cinema 23 Complex
Step III - Rid 8 Complex 58 Education 42 17 Mountain Cinema 23
Step IV - Rid 8 Complex 15 58 Education 42 Mountain Cinema 23
Step V - Rid 8 Complex 15 Cinema 58 Education 42 Mountain 23
Step VI - Rid 8 Complex 15 Cinema 25 58 Education 42 Mountain
Step VII - Rid 8 Complex 15 Cinema 25 Mountain 58 Education 42
Step VIII - Rid 8 Complex 15 Cinema 25 Mountain 40 58 Education
Step IX - Rid 8 Complex 15 Cinema 25 Mountain 40 Education 58
Step X - Rid 8 Complex 15 Cinema 25 Mountain 40 Education 60
Here, step X is the final step of the given input.

Input for the question is given below.
Input: 66 Automobile 52 Gram 27 Reduction Income 33 Transport 18

Q. Calculate the difference between the number which is at sixth position from left end and the number which is at ninth position from right end in step V.
Detailed Solution for Test Level 3: Input-Output - Question 7

The re-arrangement of the input is done in the following way.
In steps I, III, V, VII and IX, the words with increasing number of vowels are arranged one by one in ascending order.
In steps II, IV, VI, VIII and X, 2 is added to the smallest number, 2 is subtracted from the next number, again 2 is added to the next number and so on.

Step I - Gram 66 Automobile 52 27 Reduction Income 33 Transport 18
Step II - Gram 20 66 Automobile 52 27 Reduction Income 33 Transport
Step III - Gram 20 Transport 66 Automobile 52 27 Reduction Income 33
Step IV - Gram 20 Transport 25 66 Automobile 52 Reduction Income 33
Step V - Gram 20 Transport 25 Income 66 Automobile 52 Reduction 33
Step VI - Gram 20 Transport 25 Income 35 66 Automobile 52 Reduction
Step VII - Gram 20 Transport 25 Income 35 Reduction 66 Automobile 52
Step VIII - Gram 20 Transport 25 Income 35 Reduction 50 66 Automobile
Step IX - Gram 20 Transport 25 Income 35 Reduction 50 Automobile 66
Step X - Gram 20 Transport 25 Income 35 Reduction 50 Automobile 68

Required difference = 66 - 20 = 46

Test Level 3: Input-Output - Question 8
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Directions: The given question is on the basis of following information.

A number and word arrangement machine, when given an input line of words and numbers, re-arranges them by undertaking a specific rule in every step. Given below is the illustration of an input and its steps of re-arrangement.

Input - Never 76 No Neither 51 16 Nose 82 68 Nation 24 Not
Step 1: Neither Never 76 No 51 Nose 82 68 Nation 24 Not 61
Step 2: Nation Neither Never 76 No 51 Nose 82 68 Not 61 42
Step 3: Never Nation Neither 76 No Nose 82 68 Not 61 42 15
Step 4: Nose Never Nation Neither 76 No 82 Not 61 42 15 86
Step 5: Not Nose Never Nation Neither No 82 61 42 15 86 67
Step 6: No Not Nose Never Nation Neither 61 42 15 86 67 28
Here, Step 6 is the final step for the re-arrangement.

Input for the question is as follows.
Input - Apple 81 An Arrange 62 12 Aunt 94 79 Answer 36 Ant

Q. In step 4, which of the following combinations of elements describes the third and the last element of the arrangement?
Detailed Solution for Test Level 3: Input-Output - Question 8

Logic for re-arrangement of given inputs is as follows.
Every step involves addition of largest word at the start in descending order and addition of smallest number by reversing it at the end.
So, the re-arrangement is as follows.
Input - Apple 81 An Arrange 62 12 Aunt 94 79 Answer 36 Ant 
Step 1 - Arrange Apple 81 An 62 Aunt 94 79 Answer 36 Ant 21
Step 2 - Answer Arrange Apple 81 An 62 Aunt 94 79 Ant 21 63
Step 3 - Apple Answer Arrange 81 An Aunt 94 79 Ant 21 63 26
Step 4 - Aunt Apple Answer Arrange 81 An 94 Ant 21 63 26 97
Step 5 - Ant Aunt Apple Answer Arrange An 94 21 63 26 97 18
Step 6 - An Ant Aunt Apple Answer Arrange 21 63 26 97 18 49

In step 4, combination of 'Answer' and '97' describes the third and the last element of the arrangement.

Test Level 3: Input-Output - Question 9
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Directions: The given question is on the basis of following information.

A number and word arrangement machine, when given an input line of words and numbers, re-arranges them by undertaking a specific rule in every step. Given below is the illustration of an input and its steps of re-arrangement.

Input: 8 Camera 3 12 Stardom Umbrella 11 Orange 21 23 Public Apple
Step I - Apple 3 8 Camera 12 Stardom Umbrella 11 Orange 21 23 Public
Step II - Apple 3 8 Camera 12 Umbrella 11 Orange 23 Public Stardom 21
Step III - Apple 3 Orange 11 8 Camera 12 Umbrella 23 Public Stardom 21
Step IV - Apple 3 Orange 11 8 Camera Umbrella 23 Public 12 Stardom 21
Step V - Apple 3 Orange 11 Umbrella 23 8 Camera Public 12 Stardom 21
Step VI - Apple 3 Orange 11 Umbrella 23 Camera 8 Public 12 Stardom 21
Here, step VI is the final step of the given input.

Input for the question is given below:

Input: Ice-cream 18 Elephant 6 31 Brain 12 Praise Owl 13 23 Train

Q. In step III, 'Ice-cream' is related to '31' and in the same way, '13' is related to '31' in step II. In the same way, which of the following elements is related to 'Owl' in step V?
Detailed Solution for Test Level 3: Input-Output - Question 9

Distribution of words in the given input is as follows.
Words initiating with a vowel - Apple, Orange and Umbrella
Consonants - Camera, Public and Stardom
Prime numbers - 3, 11 and 23
Composite numbers - 8, 12 and 21
The re-arrangement of this input is done using the following logic.
Step 1 - Vowel + smallest prime number at start (Apple 3)
Step 2 - Consonant + largest composite number at last (Stardom 21)
Step 3 - Next vowel + next prime number (Orange 11) and the process continues till step 6.
So, the re-arrangement for the asked Input - Ice-cream 18 Elephant 6 31 Brain 12 Praise Owl 13 23 Train:

Step 1 - Elephant 13 Ice-cream 18 6 31 Brain 12 Praise Owl 23 Train
Step 2 - Elephant 13 Ice-cream 6 31 Brain 12 Praise Owl 23 Train 18
Step 3 - Elephant 13 Ice-cream 23 6 31 Brain 12 Praise Owl Train 18
Step 4 - Elephant 13 Ice-cream 23 6 31 Brain Owl Praise 12 Train 18
Step 5 - Elephant 13 Ice-cream 23 Owl 31 6 Brain Praise 12 Train 18
Step 6 - Elephant 13 Ice-cream 23 Owl 31 Brain 6 Praise 12 Train 18
Both 'Ice-cream' and '31' in step III and '13' and '31' in step II have 2 elements in between them (31 is third to the right of ice-cream). As per this relation, brain is related to owl.

Test Level 3: Input-Output - Question 10
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Directions: The given question is on the basis of following information.

A number and word arrangement machine, when given an input line of words and numbers, re-arranges them by undertaking a specific rule in every step. Given below is the illustration of an input and its steps of re-arrangement.

Input: 8 Camera 3 12 Stardom Umbrella 11 Orange 21 23 Public Apple
Step I - Apple 3 8 Camera 12 Stardom Umbrella 11 Orange 21 23 Public
Step II - Apple 3 8 Camera 12 Umbrella 11 Orange 23 Public Stardom 21
Step III - Apple 3 Orange 11 8 Camera 12 Umbrella 23 Public Stardom 21
Step IV - Apple 3 Orange 11 8 Camera Umbrella 23 Public 12 Stardom 21
Step V - Apple 3 Orange 11 Umbrella 23 8 Camera Public 12 Stardom 21
Step VI - Apple 3 Orange 11 Umbrella 23 Camera 8 Public 12 Stardom 21
Here, step VI is the final step of the given input.

Input for the question is given below:

Input: Ice-cream 18 Elephant 6 31 Brain 12 Praise Owl 13 23 Train

Q. How many elements are there between '13' and 'Owl' in step 4?
Detailed Solution for Test Level 3: Input-Output - Question 10

Distribution of words in the given input is as follows.
Words initiating with a vowel - Apple, Orange and Umbrella
Consonants - Camera, Public and Stardom
Prime numbers - 3, 11 and 23
Composite numbers - 8, 12 and 21
The re-arrangement of this input is done using the following logic.
Step 1 - Vowel + smallest prime number at start (Apple 3)
Step 2 - Consonant + largest composite number at last (Stardom 21)
Step 3 - Next vowel + next prime number (Orange 11) and the process continues till step 6.
So, the re-arrangement for the asked Input - Ice-cream 18 Elephant 6 31 Brain 12 Praise Owl 13 23 Train:

Step 1 - Elephant 13 Ice-cream 18 6 31 Brain 12 Praise Owl 23 Train
Step 2 - Elephant 13 Ice-cream 6 31 Brain 12 Praise Owl 23 Train 18
Step 3 - Elephant 13 Ice-cream 23 6 31 Brain 12 Praise Owl Train 18
Step 4 - Elephant 13 Ice-cream 23 6 31 Brain Owl Praise 12 Train 18
Step 5 - Elephant 13 Ice-cream 23 Owl 31 6 Brain Praise 12 Train 18
Step 6 - Elephant 13 Ice-cream 23 Owl 31 Brain 6 Praise 12 Train 18
So, there are five elements between '13' and 'Owl' in step 4.

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