# Coding-Decoding : Reasoning

## What does Coding-Decoding mean ?

Basically, coding is a system of transmitting the information from one person to another without known to the the third person.

The person receiving the signal or information is called the receiver, and he/she must know to decode the codes.

So, in questions related to coding-decoding, a word is coded in a particular pattern and the candidates are asked to find the similar pattern.

### Rules to follow for quick result –

1. Memorize the English Alphabets with the positions.
2. Memorize the forward/Backward order positions. A → Z & Z → Z
3. Memorize the opposite of each Alphabets. Ex- Y opposite of B.
4. If sum of two letters is 27, then both are opposite of each other. Ex – Y (25th position) opposite of B (2nd position). Here (25 + 2 = 27)
5. Always approach the Question by writing the letters’ position.
6. Make your own tricks to memorize the positions, opposite etc.
7. More you practice the more command you will get.

### Types of Questions

• Direct/Indirect Letter Coding
• Number or Symbol Coding
• Substitution Coding
• Message decoding from words or numerals

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