CODING AND DECODING

CODING AND DECODING:

Tips :

Observe alphabets or numbers given in the code keenly.

Find the sequence it follows whether it is ascending or descending.

Detect the rule in which the alphabets/numbers/words follow. Fill the appropriate letter/number/word in the blank given.

Letter position

(A = 1, B = 2, C = 3, D = 4…….Y = 25, Z = 26)

Opposite position of letters (A = 26, B = 25 …….Z=1)

Opposite of each letter(A is to opposite to Z and B is opposite to Y and C is opposite to x and so on)

LETTER CODING:

In this type the real alphabets in a word are replaced by certain other alphabets according to a specific rule to form its code.

SUBSTITUTION:

In this section an object names are substituted with different object names

MIXED LETTER CODING

To analyse such codes, any two messages bearing a common word are picked up.The common code word will mean that word. Proceeding similarly by picking up all possible combinations of two, the entire message can be analysed.