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Machine Input Output Tricks & Tips

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Machine Input Output Tricks & Tips - Part 2

Some More Machine Input Output Shortcut Trick

Machine Input Output - Patterns

  1. Pattern Based On Shifting
  2. Pattern Based On Arrangement
  3. Pattern Based On Mathematical Operation
  4. Miscellaneous Approach Or Other Patterns

1. Based On Shifting

In this pattern ,you will find the elements are shifting from one place to other.

Important Note:

  • In shifting problems, the previous step of any step can possibly be determined,so we can move in backward or reverse order which is not possible in some of the other type of problems.

How to solve Problems Based on Shifting

Lets take an Example
Input: Boy Crazy Guy Other Help Charm
Step 1. Boy Other Guy Crazy help Charm
Step 2. Boy Other Help Crazy Guy Charm
Step 3. Charm Other Help Crazy Guy Boy
Step 4. Charm Crazy Help Other Guy Boy
Step 5. Charm Crazy Guy Other Help Boy
Step 6. Boy Crazy Guy Other Help Charm
Shifting of element can easily be understood by marking them equivalent to number like
Boy = 1,Crazy = 2, Guy = 3, Other = 4, Help = 4, Charm = 5.
Input can be written as 1 2 3 4 5 6

Step 1,  2 and 4 interchanged
Step 2. 3 & 5 interchanged
Step 3. 1 & 6 interchanged
Step 4. Step 1, 2 & 3 are repeated again.
Shifting

2.  Based on Arrangement

Rules :

  1. Previous Step can never be determined.Let we have given Step VI & then ask to find Step V or IV or III ,so this is clear gives you the answer ‘Cannot be determined’
  2. Let Total No. Of element or words or numbers  in input is 8. So take n = 8 then Maximum step can be made through this input is ( n – 1).It will only happen in the case of Arrangement.
  3. To find particular step ( Let x) for any input , logically pick 1st x alphabetical word or numbers in increasing order and just place them before the remaining word or numbers.This is the case Apply when given Input is an  ‘Increasing Order’ & For Decreasing Order last x word or numbers should be picked.We will do this through example later in this article.

Different types of Arrangements:

  1. From Left
  2. From Right
  3. Left-Right Alternate Arrangement
  4. Increasing/Decreasing Arrangement of Numbers
  5. Left-Right Alternate Arrangement of Numbers
  6. Arrangement of word & Number simultaneously
  1. From Left 
    From Left
  2. From Right
    fro Right
  3. Left- Right Alternate Arrangement
    Left Right
  4. Increasing/Decreasing Arrangement
    Increasing or Decreasing
  5. Left-Right Alternate Arrangement of Numbers
    Left Right Arrangement of Numbers
  6. Arrangement of Word & Numbers Simultaneously
Case 1.
Word & Number Simulatneously Arrange
Case 2.
Case 2
Case 3.
Case 3
Case 4.
Case 4

Example:

Input vain istanbul tomorrow mind blowing gesture of the elbow
Step 1. blowing vain istanbul the mind gesture of elbow
Step 2. blowing elbow vain istanbul the mind gesture of
Step 3. blowing elbow gesture vain istanbul the mind of
Step 4. blowing elbow gesture istanbul vain the mind of
Step 5. blowing elbow gesture istanbul mind vain the of
Step 6. blowing elbow gesture istanbul mind of vain the
Step 7. blowing elbow gesture istanbul mind of the vain

1. Input ‘ is you are again famous on this’ Find the Step 3.
a) again are famous is you on this b) on this you is famous are again c) this on you is famous areagain
d) famous this on you is are again e) None of these

2. If given, Step 4 ‘option pen rose Seema tape yolk ‘ , what will be the input?
a) pen option rose tape Seema yolk b) yolk Seema tape rose option pen
c) tape Seema yolk rose option pen d) Cannot be determined e) None of these

3. Input ‘no gum to sum fame game;Find the Step 1.
a) game no gum to sum fame b) gum no to sum fame game c) game gum no to sum fame
d) Cannot be determined e) None of these

4. Input ‘ He is a great Indian cricketer’.Find out the last step for this input.
a) 7
b) 6
c) 4
d) Cannot be determined
e) None of these

5. Input ‘when men ten gain rain’.What would be the second step for this input?
a) gain when men ten rain b) gain men when ten rain c) rain ten men when gain
d) Cannot be determined e) None of these

Sol:
1. Applying Rule 3. Pick Alphabetically 3 words in forward order ( again, are , famous)
and place them before the remaining word that will give you :
Step 3. again are famous is you on this
2.Applying Rule 1. Hence Cannot be determined
3.Applying Rule 3. Step 1 : fame no gum to sum game Option e is correct.
4. Applying Rule 2. Total No of words = 6. n=6 then n-1 which is 6-1=5
Hence total No of Step can be made is 5. So Option a),b) & c) is wrong.
Now Apply Rule 3
 Input : He is a great Indian cricketer.
In alphabetical order :  A=1 , Cricketer =2, Great =3 , He = 4, Indian =5, Is= 6
Clearly After removing 1,2,3&6 ( four words) the remaining words come in order
So, Total Steps = 4, Total words Removed = 4 & Last Step = 4.
Step 4 : A cricketer great he indian is.
5. Applying Rule 3
Step need to find = 2, Total Word = 2
Input : When men ten gain rain
Now pick the word alphabetically it will be men gain,Now placed them  at front in ascending order before the other words like this : gain men and Now other words are when ten rain.
So it became Step 2: gain men when ten rain.

3. Based on Mathematical Operation

It will be better understood through an example
So lets take an example
Input :  31 45 87 54 25 68
Step 1
4
9
15
9
7
14
Step 2
3
20
56
20
10
48
Step 3
961
2025
7569
2916
625
4624
Step 4
29791
91125
658503
157464
15625
314432
Step 5
6.5
9
17.4
10.8
5
13.6
Step 6
4
9
6
9
7
5
Step 7
33
47
89
56
27
70
Step 8
26
40
82
49
20
63
Step 9
93
135
261
162
75
204
Step 10
8
18
30
18
14
28
Step 11
2
1
1
1
3
2
Step 12
9
81
225
81
100
196

Step 1: Digit sum of input.
Step 2. Product of the digits of input
Step 3. Square of the each number of the input
Step 4. Cube of the each number of the input
Step 5. Each number of the input is divided by 5
Step 6. Keep adding digits till they are converted into single digit
Step 7. Each number of the input + 2
Step 8. Each number of the input – 5
Step 9. Each number of the input * 3
Step 10. Digit’s sum of each number of input * 2
Step 11. Difference between digits of  each number of the input
Step 12.  ( Digit sum of each number of input )2

4. Misc. Problems

There is no fixed pattern in regard of statement. Statement under this category will come before you as a real surprise.Such question are complete mind game.
Misc. Problem
Step I.    Interchanged the first and last digit of the input.
Step II.   Fix the zero after the first digit of the given input
Step III. 1st digit becomes last in two-digit numbers while middle digit becomes the 1st digit in three-digit numbers
Step IV. Last digit of the given input is removed
Step V.   Just specify the zero at the end of the digit of the given input.
Here you can learn how to solve machine input by saving your time 

The general instruction of what a machine input-output question says are:
“When a word and number arrangement machine is given an input line words and number, it arranges them following a particular rule. The following is the illustration of input and re-arrangement”

Example: Input: name 37 11 is his 42 Khan 28
Step I:is name 37 11 his 42 Khan 28
Step II:is 42 name 37 11 his Khan 28
Step III:is 42 his name 37 11 Khan 28
Step IV:is 42 his 37 name 11 Khan 28
Step V: is 42 his 37 Khan name 11 28
Step VI:is 42 his 37 Khan 28 name 11
VIth step is the last step.
The last step is the final output the machine.
So what has happened in this example of VI Steps?
Input is given to you and it is simplified in the subsequent steps. By simplified we mean they’ve applied a certain logic, if you know questions of series, the series in made on a certain logic and by analysing that logic you get to know the next value in that series. Similarly, in questions of Machine Input Output, you have to analyse the given Input and its subsequent steps and understand or find out the logic behind it. It means your job is to identify the logic through which the input-output machine has transformed the input to output and you have to apply the same logic in the subsequent step of questions asked. And the last step is the final output.

FIND THE LOGIC!!!
 Compare quickly the Input and the final step and try to deduce the logic through which the machine has produced the output.
Example: Input: 96 amber cola 84 new 6
Step I: 6 96 cola 84 new amber
Step II: 6 84 96 new cola amber
Step II is the final output
Here we can see that the logic applied is arranging the numbers in ascending order (right to left) and arranging the alphabets in alphabetical order (left to right).

 Observe the happenings in the subsequent step. Is the machine shifting only 1 item at a time or is it shifting two or more?
Example: Input: 96 amber cola 84 new 6
Step I: 6 96 cola 84 new amber
Step II: 6 84 96 new cola amber
Step II is the final output
In this example, the machine is shifting two items at a time, i.e. a number and a word in each step.

 Observe the direction in which shifting has taken place- left to right, right to left.
Example: Input: 96 amber cola 84 new 6
Step I: 6 96 cola 84 new amber
Step II: 6 84 96 new cola amber
Step II is the final output
Here the number are arranged from left to right direction and words are arranged in right to left direction

 Quickly and carefully analyse and try to discriminate according to the first letter of given words is they are in alphabetical sequence or is there any particular arrangement related to vowels and consonants and analyse the numbers too.

Example: Input: assure 7 new 2 email 16 demand 3 quit 12 20 urban
Step I: assure 2 7 new email 16 demand 3 quit 12 20 urban
Step II: assure 2 7 new email 16 3 quit 20 urban demand 12
Step III: assure 2 email 3 7 new 16 quit 20 urban demand 12
Step IV: assure 2 email 3 7 quit 20 urban demand 12 new 16
Step V: assure 2 email 3 urban 7 quit 20 demand 12 new 16
Step VI: assure 2 email 3 urban 7 demand 12 new 16 quit 20
Step VI is the final output.

Logic: Here in each step a number and a word are arranged in pairs of Vowel+ Prime and Consonant +Composite. The words starting with vowels are arranged from left to right along with a prime number is ascending order. The words starting with a consonant are arranged from left to right (on the right end) in the next step along with a composite number is ascending order.

Example of Single Shifting Arrangement:

When both numbers and alphabets are given in a series, and only the alphabets or the numbers are rearranged on each step, it is called single shifting arrangement.
Input:24 custom 57 not 87 sell 15 landmark house 43
Step I: custom 24 57 not 87 sell 15 landmark house 43
Step II: custom 15 24 57 not 87 sell landmark house 43
Step III: custom 15 house 24 57 not 87 sell landmark 43
Step IV: custom 15 house 24 landmark 57 not 87 sell 43
Step V: custom 15 house 24 landmark 43 57 not 87 sell
Step VI: custom 15 house 24 landmark 43 not 57 87 sell
Step VII : custom 15 house 24 landmark 43 not 57 sell 87
Output/Answer: Step VII is the last step of the given input.

Explanation: word is taken and arranged from A-Z and then in second step the numbers are arranged in increasing order. The same pattern follows until all numbers are arranged in increasing order and all words are arranged alphabetically.
Note to avoid confusion: After arranging ‘house’ in step III, the next step will be to arrange 24. But it has already come in its place without arranging, and that’s why we will not count 24 in the next step and move to word ‘landmark’ which will now be arranged in step IV.

Example of Double Shifting Arrangement:

Here both words and numbers are arranged either on a right or left side in each of the steps. The procedure continues till the last step.
Input: monkey 44 goat and 60 72 willing
Step I: 72 monkey 44 goat 60 willing and
Step II: 72 60 monkey 44 willing and goat
Step III: 72 60 44 willing and goat monkey
Step IV: 72 60 44 and goat monkey willing
Step IV/Output: is the last step of the arrangement of the above input as the intended rearrangement is attained.

Example of Even Odd number arrangements:

Input: 15 28 27 39 12 6
Step I: 6 15 28 27 39 12
Step II: 6  12 15 28 27 39
Step III: 6 12 28 15 27 39
Step IV: 6 12 28 39 15 27
Step V/Output: 6 12 28 39 27 15
Explanation: In the above solution to the example, first the even numbers are arranged in increasing order whereas odd numbers are arranged in decreasing order only after the even numbers are arranged.

Shortcuts Method to solve Input–Output Questions

Now that we know how Input-Output questions are solved, we need to start thinking of ways to save time while solving these questions.

1. Cancel out the numbers already arranged

Where only numbers are given
Solve the question as per increasing order:
Output:14      37      56     67     80      90

Solve the following question as per decreasing order:
The solution is:
Output/ Step 3:90     87     20     14      12     2

2. Compare consecutive alphabets

Arrangement of words in ascending order (A – Z)
Arrangement of words in descending order (Z –A)
Let us solve an example relating to words in a short cut way
Consider the first letters of the words to rearrange in ascending order
Input:
Output: All Alone Chandigarh I Previous Visited Year
Note: Here both the words ‘all’ and ‘alone’ start with ‘a’. So how do we put them in ascending order? When the first alphabets are same, compare the 2nd alphabets and so on. Hence ‘all’ comes before ‘alone’ in the arrangement.
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