16 September, 2016

Reasoning Study Notes: Machine Input-Output

In machine input-output, the basic problem is the problem of time. You can obviously get the logic if you are not bound by time, but the challenge is to get the logic as quickly as possible and get done with the questions to score more.

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.

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