CODING-DECODING is an vital part of Logical reasoning section in all Entrance tests and competitive exams wherein aptitude is included. Coding is a method of transmitting a message between the sender and the receiver in a particular code or pattern based on some set of rules so that no third person can understand it. While Decoding is a process used to decode or decrypt the pattern into its original form from the given codes.
Formulas For Coding Decoding
Coding involves representing English alphabets with other symbols so as to hide the correct meaning.
Coding has two main type of questions. i. e. Letter Coding and Word Coding
Letter Coding: In Letter coding, an English word and its corresponding code are given. While there is a one-to-one relationship between the given letters, the kind of relationship is certainly not fixed.
? Letter Movement
? Direct Coding
? Reverse Coding
Alphabet Numbers
Opposite Letters
Sample Pattern
Practice Questions For Coding-Decoding
Q1) In a certain code, COMPUTER is written as RFUVQNPC. How is MEDICINE written in the same code?
A) MFEDJJOE
B) EOJDEJFM
C) MFEJDJOE
D) EOJDJEFM
Solution :
Q2) In a certain code 'MISSIONS' is written as 'MSIISNOS'. How is 'ONLINE' written in that code?
A) OLNNIE
B) ONILEN
C) NOILEN
D) LNOENI
Solution :
Q3) If in a certain language, MADRAS is coded as NBESBT, how is BOMBAY coded in that code?
A) CPNCBX
B) CPNCBZ
C) CPOCBZ
D) CQOCBZ
Solution :
Q4) If PAINT is coded as 74128 and EXCEL IS CODED AS 93596 then how would you encode ACCEPT?
A) 455978
B) 547978
C) 554978
D) 735961
Solution :
Q5) In a certain code ‘PURPOSE’ is written as ‘UPPRSOE’. How would ‘WATER’ be written in that code?
A) WATRE
B) AWTRE
C) AWETR
D) WEATR
Solution :
WA = AW
TE = ET
So code of WATER is AWETR.
Q6) In a certain code ‘EASIER’ is written as TGKUCG. How is CUTTER written in that code?
A) TWVVGE
B) TGWWVE
C) TGVVWE
D) TVGVWE
Solution :
Now add 2 to each letter R+2=T, E+2=G, T+2=V and so on.
So code of CUTTER is TGVVWE.
Q7) In a certain code ‘DAYLONG’ is written as ZBEKHOP. How is CORDIALwritten in that code?
A) SPDCMBJ
B) SPDEMBJ
C) DPSCMBJ
D) SPDCJBM
Solution :
Q8) In a certain code ‘CORNER’ is written as GSVRIV. How is CENTRAL in that code?
A) DFOUSBM
B) GIRXVEP
C) GJRYVEP
D) GNFJKER
Solution :
Q9) In a certain code ‘PULSE’ is written as DRKTO add 'NEW' is written as VDM. How is PROBES be written in that code language?
A) RDANQO
B) QSPCFT
C) TFCPSQ
D) OPNADR
Solution :
Q10) If ACTION is coded a ZXGRLM, then HEALTH will be coded in the same way as:
A) SVZOGS
B) TVZOGT
C) RUZPGR
D) QVGOZQ
Solution :
