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Concept of Coding and Decoding: 

 

CodingDecoding is one of the most important chapters for any competitive examination. In the Bank exam, you can expect 2 to 6 questions from this chapter. In this type of problem, a secret message or words are given, you have to decode it.

At first, you need to observe the characteristics properly.

 

To solve this type of problem you need to observe the characters given in the code properly. Then you need to solve the problem as per the questions.

 

Position of letters:

                                                                                      

Reverse position of Letters:

 

Pair of Alphabet for opposite coding:

 

Type of Coding: 

1.  Letter Coding

2.  Symbol Coding

3.  Coding in Different Languages

4.  Coding based on Conditions