Coding-Decoding
Category : 7th Class
WHAT IS CODING?
Coding is a method of expressing something in secret way.
WHAT IS DECODING?
Decoding is a process to understand a coded language.
TYPES OF CODING
1. Letter Coding: Letters are used in forward or backward or both the directions for making some code language.
2. Direct Letter Coding: Letters of a word are directly replaced by other letters.
3. Number/Symbol Coding: Numerals or symbols are assigned to words.
4. Substitution Coding: Some particular words are assigned to certain names.
EXAMPLE
In a certain code, if the word 'ROAD' is coded as 'WTFI', then the word for the code 'GJFY' is
(a) REAP
(b) TAKE
(c) BEAT
(d) LATE
Explanation (c):
Each letter of the word is five steps behind the corresponding letter of the code.
Thus, we have:
So, BEAT is coded as GJFY.
Hence, the correct option is (c).
You need to login to perform this action.
You will be redirected in
3 sec