Reasoning Notes | Machine Input and Output
In such a type of reasoning based question, you are given a word and number arrangement. With each subsequent operation, the arrangement of the words and numbers changes following a particular pattern. These operations are performed until a final arrangement is reached or is performed in a loop. You are required to identify the hidden pattern in the rearrangement and apply it to the questions.
➔ Ordering
Alphabets(Forward/Reverse order)
Numbers(Ascending/Descending order)
Eg. Input: Cat Rail Snow Moon Fear
Step 1: Snow Cat Rail Moon Fear
Step 2: Snow Rail Cat Moon Fear
Step 3: Snow Rail Moon Cat Fear
Step 4: Snow Rail Moon Fear Cat
Input: Care Steel Brick Nap Bomb Cry
Solution:
The given rearrangement has a pattern that can be followed from the input step to the final step, which is Step IV.
Observe carefully. The rearrangement follows the following patterns:
The rearrangement is taking place from left to right.
The rearrangement is taking place one word at a time.
The rearrangement is done on the basis of descending alphabetic order based on the first letter of the word.
Note: To understand the pattern, often it is sufficient to look at the input, 1st, 2nd and final steps of the arrangement.
Now, if we apply the same pattern rules to the second input, we can immediately tell what the output (the final step after rearrangement) would be:
Input: Care Steel Brick Nap Bomb Cry
Output: Steel Nap Cry Care Brick Bomb
1. Shifting Pattern:
A particular number or word is shifted from its initial position to usually an extreme end. This shifting based on various parameters, for instance, ascending order and descending order on the basis of - vowel /consonant, odd/even in case of number, the number of alphabets, etc.
Eg. Input: good more 63 39 28 for again 66
Step 1 : 66 good more 63 39 28 for again
Step 2 : 66 again good more 63 39 28 for
Step 3 : 66 again 63 good more 39 28 for
Step 4 : 66 again 63 for good more 39 28
Step 5 : 66 again 63 for 39 good more 28
Step 6 : 66 again 63 for 39 good 28 more
Q1. Input: Chanakya Wind 23 43 56 Heir Beach 71
Follow the above example pattern to solve.
2. Double Shifting :
This pattern is the same as shifting pattern , The only difference being shifting takes place both end of input. This shifting may take place simultaneously is same step or in alternate step-
Eg. Input: tall 48 13 rise alt 99 76 32 wise jar high 28 56 barn
Step 1: 13 tall 48 rise 99 76 32 wise jar high 28 56 bam alt
Step 2: 28 13 tall 48 rise 99 76 32 wise jar high 56 alt barn
Step 3: 32 28 13 tall 48 rise 99 76 wise jar 56 alt barn high
Step 4: 48 32 28 13 tall rise 99 76 wise 56 alt barn high jar
Step 5: 56 48 32 28 13 tall 99 76 wise alt barn high jar rise
Step 6: 76 56 48 32 28 13 99 wise alt barn high jar rise tall
Step 7: 99 76 56 48 32 28 13 alt barn high jar rise tall wise As per the rules followed in the above steps, find out in each of the following questions the appropriate step for the given input.
Q1. Input: 84 why sit 14 32 not best ink feet 51 27 vain 68 92 (All the numbers are two-digit numbers.)
1. Which step number is the following output?
32 27 14 84 why sit not 51 vain 92 68 feet best ink
1. Step V
2. Step VI
3. Step IV
4. Step III
5. None of these
2. Which word/number would be at the 5th position from the right in Step V?
1. 14
2. 92
3. feet
4. best
5. why
3. How many elements (words or numbers) are there between 'feet' and '32' as they appear in the last step of the output?
1. One
2. Three
3. Four
4. Five
5. Seven
4. Which of the following represents the position of ‘why' in the fourth step?
1. Eighth from the left
2. Fifth from the right
3. Sixth from the left
4. Fifth from the left
5. Seventh from the left
Solution and Answer:
Input: 84 why sit 14 32 not best ink feet 51 27 vain 68 92
Step 1: 14 84 why sit 32 not ink feet 51 27 vain 68 92 best
Step 2: 27 14 84 why sit 32 not ink 51 vain 68 92 best feet
Step 3: 32 27 14 84 why sit not 51 vain 68 92 best feet ink
Step 4: 51 32 27 14 84 why sit vain 6892 best feet ink not
Step 5: 68 51 32 27 14 84 why vain 92 best feet ink not sit
Step 6: 84 68 51 32 27 14 why 92 best feet ink not sit vain
Step 7: 92 68 84 51 32 27 14 best feet ink not sit vain why
Answer:
1. 5
2. 4
3. 2; 27, 14 and best
4. 3; Step IV: 51 32 27 14 84 why sit vain 68 92 best feet ink not
3. Mathematical Manipulations on the output which would in this case obviously be numerical. The operations could be doubling, squaring, adding.
➔ Ordering
Alphabets(Forward/Reverse order)
Numbers(Ascending/Descending order)
Eg. Input: Cat Rail Snow Moon Fear
Step 1: Snow Cat Rail Moon Fear
Step 2: Snow Rail Cat Moon Fear
Step 3: Snow Rail Moon Cat Fear
Step 4: Snow Rail Moon Fear Cat
Input: Care Steel Brick Nap Bomb Cry
Solution:
The given rearrangement has a pattern that can be followed from the input step to the final step, which is Step IV.
Observe carefully. The rearrangement follows the following patterns:
The rearrangement is taking place from left to right.
The rearrangement is taking place one word at a time.
The rearrangement is done on the basis of descending alphabetic order based on the first letter of the word.
Note: To understand the pattern, often it is sufficient to look at the input, 1st, 2nd and final steps of the arrangement.
Now, if we apply the same pattern rules to the second input, we can immediately tell what the output (the final step after rearrangement) would be:
Input: Care Steel Brick Nap Bomb Cry
Output: Steel Nap Cry Care Brick Bomb
1. Shifting Pattern:
A particular number or word is shifted from its initial position to usually an extreme end. This shifting based on various parameters, for instance, ascending order and descending order on the basis of - vowel /consonant, odd/even in case of number, the number of alphabets, etc.
Eg. Input: good more 63 39 28 for again 66
Step 1 : 66 good more 63 39 28 for again
Step 2 : 66 again good more 63 39 28 for
Step 3 : 66 again 63 good more 39 28 for
Step 4 : 66 again 63 for good more 39 28
Step 5 : 66 again 63 for 39 good more 28
Step 6 : 66 again 63 for 39 good 28 more
Q1. Input: Chanakya Wind 23 43 56 Heir Beach 71
Follow the above example pattern to solve.
2. Double Shifting :
This pattern is the same as shifting pattern , The only difference being shifting takes place both end of input. This shifting may take place simultaneously is same step or in alternate step-
Eg. Input: tall 48 13 rise alt 99 76 32 wise jar high 28 56 barn
Step 1: 13 tall 48 rise 99 76 32 wise jar high 28 56 bam alt
Step 2: 28 13 tall 48 rise 99 76 32 wise jar high 56 alt barn
Step 3: 32 28 13 tall 48 rise 99 76 wise jar 56 alt barn high
Step 4: 48 32 28 13 tall rise 99 76 wise 56 alt barn high jar
Step 5: 56 48 32 28 13 tall 99 76 wise alt barn high jar rise
Step 6: 76 56 48 32 28 13 99 wise alt barn high jar rise tall
Step 7: 99 76 56 48 32 28 13 alt barn high jar rise tall wise As per the rules followed in the above steps, find out in each of the following questions the appropriate step for the given input.
Q1. Input: 84 why sit 14 32 not best ink feet 51 27 vain 68 92 (All the numbers are two-digit numbers.)
1. Which step number is the following output?
32 27 14 84 why sit not 51 vain 92 68 feet best ink
1. Step V
2. Step VI
3. Step IV
4. Step III
5. None of these
2. Which word/number would be at the 5th position from the right in Step V?
1. 14
2. 92
3. feet
4. best
5. why
3. How many elements (words or numbers) are there between 'feet' and '32' as they appear in the last step of the output?
1. One
2. Three
3. Four
4. Five
5. Seven
4. Which of the following represents the position of ‘why' in the fourth step?
1. Eighth from the left
2. Fifth from the right
3. Sixth from the left
4. Fifth from the left
5. Seventh from the left
Solution and Answer:
Input: 84 why sit 14 32 not best ink feet 51 27 vain 68 92
Step 1: 14 84 why sit 32 not ink feet 51 27 vain 68 92 best
Step 2: 27 14 84 why sit 32 not ink 51 vain 68 92 best feet
Step 3: 32 27 14 84 why sit not 51 vain 68 92 best feet ink
Step 4: 51 32 27 14 84 why sit vain 6892 best feet ink not
Step 5: 68 51 32 27 14 84 why vain 92 best feet ink not sit
Step 6: 84 68 51 32 27 14 why 92 best feet ink not sit vain
Step 7: 92 68 84 51 32 27 14 best feet ink not sit vain why
Answer:
1. 5
2. 4
3. 2; 27, 14 and best
4. 3; Step IV: 51 32 27 14 84 why sit vain 68 92 best feet ink not
3. Mathematical Manipulations on the output which would in this case obviously be numerical. The operations could be doubling, squaring, adding.
