Coding Decoding questions are very frequent to us in any competitive exam. These questions tell the ability of candidates solving skills. These questions are probably on coding alphabetic letters or coding Letters and Numeric values.
To solve Coding Decoding questions one should aware of Alphabetic letters position from forward and backward.Forward: Backward:
1) HARSHITH is coded as IBSTIJUI. How will be SIVAJI coded?
a) TJWBLJ b) TJWBKJ c) TJVBKJ d) TJWCKJ
The coded letters are just increased (+1) one letter of Harshith. Look the example below:
2) EXAMS is coded as DWZLR. How is ANIMAL coded?
a) ZMHLZK b) ZMHLBK c) ZMHNZK d) ZMHLZM
The coded letters are just decreased (-1) one letter of EXAMS. Look the example below:
1) ROJA is coded as TRNF. Then FINE is coded as?
a) HLRJ b) HLJR c) HLRI d) HLRK
Each letter in ROJA is increased by 2, 3, 4, 5 letters
INSTITUTE is coded as ETUTITSNI. How is GENERAL coded as?
a) ERAGLEN b) LARENEG c) LARNEEG d) LARENGE
All the letters in the word INSTITUTE is coded in opposite direction. In the same ways GENERAL can be coded as: LARENEG.
In these questions, either numerical code values are assigned to a word or alphabetical code values are assigned to numbers. The candidate is required to analyse the code as per directions.
Case I: When numerical values are assigned to words.
Eg: If in a certain code ROPE is coded as 6821, CHAIR is
coded as 73456 what will be the code for CRAPE?
(1) 73456 (2) 76421 (3) 77246 (4) 77123 (5) None of these
Clearly, in the given code, the alphabets are coded as follows.
R O P E C H A I
6 8 2 1 7 3 4 5
So CRAPE is coded as 76421
So the answer is (2)
Case II: When alphabetical code values are assigned to the numbers.
Eg: In a certain code 3456 is coded as ROPE. 15546 is
coded as APPLE. Then how is 54613 coded?
(1) RPPEO (2) ROPEA (3) POEAR (4) PAREO (5) None of these
Clearly in the given figures, the numbers are coded as follows.
3 4 5 6 1 4
R O P E A L
So 54613 is coded as POEAR. The answer is (3)
In this type of question, three or four complete messages are given in the coded language and the code for a particular word is asked. To analyse such codes, any two messages bearing the common word are picked up. The common code word will mean that word. Proceeding similarly by picking up all possible combinations of two messages the entire message can be analysed.
Eg: If tee see pee means drink fruit juice, see kee lee
means juice is sweet, and lee ree mee means he is
intelligent, which word in that language means sweet?
(1) see (2) kee (3) lee (4) pee (5) tee
In the first and the second statements the common word is juice and the common code word is see. So see means juice. In the second and the third statements, the common word is 'is' and the common code is lee. So lee means is. Thus in the second statement, the remaining word sweet is coded as kee. Hence the answer is (2).
In this type of questions, three or four complete messages are given in the coded language and the code number for a particular word is asked.
Eg: If in a certain code language, 851 means good sweet
fruit; 783 means good red rose and 341 means rose
and fruit which of the following digits stands for sweet
in that language?
(1) 8 (2) 5 (3) 1 (4) 3 (5) None of these
In the first and the second statements, the common code digit is 8 and the common word is good. So 8 stands for good. In the first and the third statements, the common code digit is 1 and the common word is fruit. So 1 stands for fruit. Therefore in the first statement, 5 stands for sweet. Hence the answer is (2).
In these questions, artificial or code values are assigned to a word or a group of words and the candidate is required to find out the original words.
Eg: If in a certain language FLOWER is written as
EKNVDQ, what will be written as GNTRD?
(1) HEOUS (2) HOUES (3) HUOSE (4) HOUSE (5) None of these
Each letter of the word is one step ahead of the corresponding
letter of the code.
E K N V D Q G N T R D
F L O W E R H O U S E
Thus HOUSE is written as GNTRD, So the answer is (4).
More on Coding Decoding:Model Problems on Coding Decoding
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