Tuesday, March 14, 2017

How to Solve New Coding-Decoding Problems in Bank PO Exams 2017 - A Step by Step Guide



Hello and welcome to exampundit. Reasoning is a very important section in the banking examinations. And you are all well aware that the pattern of questions asked in the reasoning section has changed a lot. So today, we are sharing an article on how to solve the new pattern coding –decoding.


3 STEP APPROACH FOR SOLVING CODING-DECODING-
1. Have a look at the words and codes given.
2. Translate the codes.
3. Deduce the probable codes.


Now after reading these 3 steps you might be thinking if it’s so easy to decode the codes then why 
you have been finding it difficult to do so in the examination hall. Yes, it is easy but when paid attention. 

The reason why you found it a little difficult in the examination hall was you were not well acquainted with the new pattern.  The previous pattern coding-decoding asked in the exams was based on the method of “elimination” but the new pattern is based on ‘’translating codes”. So let’s take an example to learn the new pattern with the above 3 step approach.


Example-
Inventions the college world needs          3#7     10@8       5@3       7#8       5%4
Yuvraj is my favourite player                      9#2       2?4         6$1         6*2       2@8    
Study this from Manorama Yearbook       8^4       5?8         8&2        4@7      4!2


Decoding using the 3 step approach-

Step 1- A general look clearly shows that each code has a number both in the beginning and in the end and in between there is a symbol.

Step 2- A more deeper analysis for translating the codes.



Taking the first line in consideration

Inventions the college world needs     3#7     10@8     5@3     7#8     5%4


We clearly observe that the number 5 in the beginning of a code is written twice which means that any two words have relation with number 5. Here in this, the number 5 represents the total number of alphabets in a word (world and needs both the words have 5 alphabets).


So, the codes that can be deduced by this much analysis-
Inventions- 10@8
The- 3#7
College- 7#8
World- 5@3 or 5%4
Needs- 5@3 or 5%4


Also, number 8 is written twice in the end of a code. So we’ve to deduce some relation. But taking only a single line in consideration we are not able to derive any relation. So proceed further.


Taking second line in consideration
Yuvraj is my favourite player     9#2     2?4     6$1     6*2     2@8
Codes that can be deduced by above analysis-
Yuvraj- 6$1 or 6*2
Is- 2?4 or 2@8
My- 2?4 or 2@8
Favourite-9#2
Player- 6$1 or 6*2


Taking last line in consideration
Study this from Manorama Yearbook     8^4     5?8     8&2     4@7     4!2
Codes that can be deduced by above analysis-
Study- 5?8
This- 4@7 or 4!2
From- 4@7 or 4!2
Manorama- 8^4 or 8&2
Yearbook- 8^4 or 8&2


It must be noted that in “Inventions” the symbol in the code is '@' which is also a symbol either in the code for “world” or for “needs”. If we look carefully, then Inventions and Needs both have alphabet “s” at the end which hence means that the symbol in the codes is for the last alphabet in the word. And hence more codes can be deduced.


Needs-  5@3  so automatically ‘world’ will be coded as- 5%4
Is- 2@8  so automatically ‘my’ will be coded as- 2?4
This- 4@7  so automatically ‘From’ will be coded as- 4!2


Now the codes for ’Manorama’, ‘Yearbook’, ‘Yuvraj’ and ‘Player’ are still unclear. Since the total number of alphabets, last alphabet has already been considered in codes as the initial number and the symbol respectively. So we may consider either the first alphabet or the middle alphabet  etc which can form some sort of relation with the last number in the code to decode the remaining codes.


When we consider ‘Manorama’ which can be coded as either 8^4 or 8&2. If we consider the first alphabet ‘M’ the numeric value of which is 13. So it is a possible that 1+3 has been summed up and hence 4 in the end of the code. But then as per this possible deduction the numeric value in the end in the code for ‘Yearbook’ will be 7 which isn’t there. So, we have to look for some other possible deduction.


The reversal for ‘M’ is ‘N’. If we consider the numeric value of ‘N’, it is 14. The value 4 may come when we multiply 1 and 4. When we consider ‘Y’ in ‘Yearbook’, the reversal for which is ‘B’. The numeric value of the same is 2. So, the codes for ‘Manorama’ and ‘Yearbook’ are 8^4 and 8&2 respectively. Similarly the codes for ‘Yuvraj’ and ‘Player’ are 6*2 and 6$1 respectively.


Step 3- Hence all the codes have been decoded. The first numeric value represents the number of the alphabets in the word, symbol in place of the last alphabet of the word and the last numeric value represents the value of reversal. If the numeric value of reversal is a two-digit number then the digits are multiplied and if a single-digit number then it is written as it is.



The overall process takes a minute or two depending on the practice. This has been elaborated just for making things clear to you.

Thank you

Ruchi

Exampundit Mentor


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Regards



Team ExamPundit

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