Coding-Decoding
Category : 6th Class
WHAT IS CODING?
Coding is a method of expressing something in a secret way.
WHAT IS DECODING?
Decoding is a process to understand a code language.
TYPES OF CODING
1. Letter Coding: in this type of coding, letters are used in forward or backward or both the directions for making some code language.
2. Direct Letter Coding: Sometimes letters of a word are directly replaced by other letters. For example :
Word Code
ZOOLOGY PMMTMHD
Here, Z, O, L, G and Y are replaced by P, M, T, H and D. Similarly, GOOGLY can be coded as HMMHTD.
3. Number/Symbol Coding: Sometimes numerals or symbols are assigned to words.
4. Substitution Coding: Sometimes some particular words are assigned to certain names.
EXAMPLE
If in a certain code language, POPULAR is coded as QPQVMBS, then which word would be coded as GBNPVT?
(a) FARMER (b) FAMOUS (c) FRAMES (d) FARMES
Explanation (b):
POPULAR is coded in the following way:
Similarly, we can obtain the word for which GBNPVT is code.
Consider as follows:
Thus, the required word is FAMOUS.
So, the correct option is (b).
You need to login to perform this action.
You will be redirected in
3 sec