Tips & Tricks: Coding-Decoding - Tips & Tricks for Government Exams - Bank Exams

Coding Decoding Shortcut Tricks

First of all we should know the positioning (in numerical value) and opposite of all alphabets. The below given diagram explain itself:
(Above given diagram shows the numerical values of different alphabets as well as particular alphabet's opposite alphabets e.g. Numeric value of F is 6 and opposite of F is U and U's numeric value is 21 and so on).

Examples

Example 1: If in a certain language "NIL" is written as "MOHJKM", then how will "BOND" be written in that language?
(a) ACNPOMCE
(b) ANCPMOCE
(c) ACNPMOCE
(d) ACNPMEOC
(e) None of The Above
Ans: (c)
Solution: 

Trick: Each letter is coded with its left and right letters in English alphabet manner is used.

Example 2: If in a certain language, "TOP" is written as "OQNPSU", then how will "SUN" be coded in that language?
(a) MOVTRT
(b) MOTVRT
(c) MOVTTR
(d) MOVRTT
(e) None of The Above
Ans: (b)
Solution:

Trick: Each letter is coded with its left and right letters in English alphabet manner is used.

Example 3: If "PKROK" is coded as 72962 and KRRPK as "29972", then how can "QLSAZ" be coded?
(a) 45716
(b) 74315
(c) 91523
(d) 51430
(e) None of The Above
Ans: (d)
Solution: P - 7  
K - 2
R - 9
O - 6
K - 2
(From above it shows that P is coded as 7, K is coded as 2, R is coded as 9 and O is coded as 6 that means code of "QLSAZ" does not have either 7, 2, 9, 6 in options. Hence, required code will be 51430, which is given in Option D). In simple words, we can say that the options which does not contain either of 7, 2, 9 and 6 is answer.

Example 4: If in a certain code language "SIMILAR" is written as "IZORNRH", then how will "BECTOR" be written in that language?
(a) ILGXYV
(b) ILGXVY
(c) ILXGYV
(d) ILXYVG
(e) None of The Above
Ans: (b)
Solution: 

Trick of Opposite Alphabets is used.

Example 5: In a certain code language "TIGER" is written as "2097518", then how will "TENDULKAR" be written in that language?
(a) 205144212156212
(b) 205144221111182
(c) 205144211211118
(d) 205144211532522
(e) None of The Above
Ans: (c)
Solution:

Trick of Alphabets in numerical value is used.