Coding Decoding questions
Type 2: Direct Letter Coding
In direct-coding, the code letters occur in the same sequence as the corresponding letters occur in the words.
In questions on direct-coding,either the particular codes of letters are given or the codes of two or more words are given and one is asked to find the codes of given words involving only those letters for which the codes have already been mentioned.
for example, let us consider a language in which A is codes as W, C as P, E as T, L as Z, S as B and T as K. Then the code for CASTLE is that language is PWBKZT.
Such type of coding is called Direct-letter coding.
Type 3: Number/Symbol Coding
Example: If E = 5, PEN = 35, Then PAGE =?
Solution: Clearly, putting A=1, B=2, C=3, D=4,…..M=13, ……X=24,……..Z=26.
PEN = P + E + N = 16 + 5 + 14 = 35
So PAGE = P + A + G + E = 16 + 1 + 7 + 5 = 29
Ans is 29.
Type 4: Matrix Coding
In this type of Problem you have given two matrix and by compression of two matrix you have to find correct answer.
For Matrix Coding please watch this video.
Type 5: Substitution
Type 6: Deciphering message word codes