Coding Decoding Reasoning Short tricks in hindi by Rajesh Choudhary Sir | CLAT | SSC | CAT | 2020

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Coding Decoding Reasoning | Reasoning Short tricks by Rajesh Choudhary Sir | Coding Decoding for CLAT 2020 | SSC 2020
CODING-DECODING is an important part of the Logical reasoning section in all aptitude related examinations.
Coding is a process used to encrypt a word, a number in a particular code or pattern based on some set of rules.
Decoding is a process to decrypt the pattern into its original form from the given codes.
Letter Coding In this type of question, alphabets of a word are replaced by some other alphabets according to specific rules to form code.
Number Coding In this type of question, a word is replaced by certain numbers according to some specific rule.
In this segment of common sense reasoning, secret messages or words have to be decoded. They are coded as per a definite pattern/rule which should be identified 1st. Then the same is applied to decode another coded word. Under this segment, you come across two types of coding, letter coding, and number coding. Based on these two types of coding-decoding various types of problems come your way. This chapter makes you familiar with every type of problem base on coding-decoding.
TYPE I (CODING BY LETTER SHIFTING)
Pattern 1: Coding in forwarding sequence
Example: If ‘GOOD’ is coded as ‘HPPE’, then how will you code ‘BOLD’?
Type II (Coding by analogy)
Example: If ‘RPTFA’ stands for ‘BLADE’, how will you code ‘BALE’,
Explanation: Here, ‘BLADE” has been coded as ‘RPTFA’. You will see that all the letters in the word ‘BALE’, which have to be coded, are also there in the word ‘BLADE’. Hence, all that needs to be done is to choose the relevant code letters from the code word ‘RPTFA’. Therefore, B becomes R, A becomes T, L becomes P and E becomes A. Therefore, ‘BALE’ will be coded as ‘RTPA’.
Example : If ‘TEMPERATURE’ is coded as ‘ERUTAREPMET’, then how will you code ‘EDUCATION’ following the same scheme.
EXPLANATION: Here, the word ’TEMPERATURE’ has been reversed. Hence, the code the ‘education’ will be ‘NOITACUDE’.
TYPE III (coding in fictions language)
In some cases of coding-decoding, fictions language is used to code some words. In such questions, the codes for a group of words is given. In such types of problems, codes for each word can be found by eliminating the common words.
Example: In a certain code language ‘over and above’ is written as ‘da pa ta’ and ‘old and beautiful’ is written as ‘sa na pa’. How is ‘over’ written in that code language?
TYPE IV (CODING BASED ON NUMBERS)
Pattern 1: When numerical values are given to words.
Example : If in a certain language A is coded as 1, B is coded as 2. C is coded as 3 and so on, then find the code for AEECD.
TYPE V (MATHEMATICAL OPERATIONS WITH THE POSITION NUMBERS OF LETTERS)
Example: In a certain code, if ‘TALE’ is written as 38, then how will you code ‘CAME’ using the same coding scheme?
Practice Questions:
1. In certain code, CHANDIGARH is written as DNAHCHRAGI. How is SIKKIM written in that code?
a. TJKJKM b. TJLLJN c. MIKKIS d. KISMIK e. None of these
2. In a certain code language ‘do re me’ means ‘he is late’, ‘fa me la’ means ‘she is early’ and ‘so ti do’ means ‘he leaves soon’. Which word in that language means ‘late’?
a. la b. do c. me
d. Date inadequate e. none of these
3. If ‘table’ is called ‘chair’, ‘chair’ is called ‘cupboard’, ‘cupboard’ is called ‘chalk’, ‘chalk’ is called ‘book’, ‘book’ is called ‘duster’ and ‘duster’ is called ‘table’, what does the teacher use to write on the black board?
a. book b. Duster c. table
d. chair e. none of these
4. In a certain coed BOND is written as 1543 and DEAN is written as 3864. How is BED written in that code?
a. 153 b. 183 c. 138
d. 143 e. None of these
5. BF is related to DH in the same way as PS is related to_____________?
a. SU b. SV c. RV
d. RU e. None of these
6. In a certain code NAMES is written as TFNBO. How is CRANE written in that code?
a. FMBQD b. DSBOF c. FOBSD
d. FBODS e. None of these
7. In a certain coed ‘go home’ is written as ‘ta na’ and ‘nice littel home’ is written as ‘na ja pa’. How is ‘go’ written in that code?
a. ta b. na c. ja
d. na or ta e. None of these
8. In a certain code language FIVE is written as GHWD. How is HURT written in the same code language ?
a. ITSS b. ITST c. GTSS
d. ITQU e. None of these
9. In a certain code language ‘La Ke Ta’ means ‘go and swim’ and ‘Ne La Se’ mean ‘you swim here’ and ‘Pe Ke Ne Ta’ means ‘he and you go’. Which of the following is the code for ‘here’ in that code language?
a. La or se b. La c. Ne
d. Cannot be determined e. None of these
10. ‘8’ is related to ’16P’ and ‘6’ is related to ’12L’ in the same way as ‘11’ is related to...........
a. 22R b. 22K c. 22J
d. 22S e. None of these
11. In a certain code language ‘PULSE’ is written as ‘DRKTO’ and ‘NEW is written as ‘VDM’. How will ‘PROBES’ be written that code language?
a. RDANQO b. QSPCFT
c. TFCPSQD d. OPNADR
e. None of these

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