CODING & DECODING
1. Pattern-Based Coding and Decoding: Example 2: If the code of the word TEACHER
is XHDIKHL, what will be the code of HEAT?
To solve pattern-based questions quickly, you
should learn the positions of the letters in Solution: Observe the question closely and you
English alphabet. For this, you should learn the should be able to conclude that there is no
basic five letters of the non-dictionary word E- relation between the letters of the word
J-O-T-Y which are respectively positioned at 5, TEACHER and the letters of the given code,
10, 15, 20 and 25th position. With these five but the letters of the word HEAT are already
'landmarks', the positions of all the other letters contained in the parent word TEACHER. So,
can be easily found. Let us take the case of 'R'. picking the corresponding code from the parent
Since R is two letters behind T, so its position word, the code for HEAT will be KHDX.
will be 18.
3. Coding of a word in a sentence:
Example 1: The questions covered in this type
In this type of coding questions, generally three
are like "If TEACHER is coded as VGCEJGT,
or four sentences or words are given with
how will you code HUSBAND"?
sentences or words containing codes. You just
Solution: Here, you need to check what logic of have to check for the common words/letters in
coding is applied between the letters of the the sentences/words and corresponding
given word and that of the code. Here code for common words/letters in the codes to get the
T is V i.e. 2 is added in the position of T to get answer e.g. "Ram is Smart" is coded as LPG
its code. The same thing happens for the other and "Smart means intelligent" is coded as SLY.
letters too. Now, to write the code of the word From this, you should analyze that the only
HUSBAND, you need to add 2 in the positions common word is 'smart' and the only common
of the letters of the HUSBAND and its code letter is 'L', which means that 'L' is the code for
will be JWUDCPF. the word 'smart'. In such cases, the codes are
not seen at the corresponding positions but for
2. Random pattern coding and decoding:
the common words.
In this type of questions, the code of the word is
Q1) If MARBLES is coded as PDUEOHV,
written randomly and the question asked
then how will GIN be coded as?
contains the same letters as given in the original
word. In order to answer this, you just have to Solution:
check for the code of each letter from the given
M (+3) → P
word and place the corresponding code for
every letter. A (+3) → D
1
, CODING & DECODING
R (+3) → U (P+E+N)-(T+E+N)
B (+3) → E 16+5+14-20+5+14
L (+3) → O =35-35=0
E (+3) → H P+E+N=35
S (+3) → V DEN-COB= (4+5+14) - (3+15+2) =3
Similarly, GIN → JLQ Q4) If UNCOVER is coded as FMXLEVI,
then how will TIP be coded as?
Q2) In a certain code language, "REMOTE"
is written as "KYSPGS" and "BRAND" is Solution:
written as "IRDTC". How is "MOBILE"
Here, we have decoded alphabets are in reverse
written in that code language?
order sequence to the coded alphabets. So, the
Solution: ‘TIP’ is coded as ‘GRK’.
R (+1) => S; E (+2) => G; M (+3) => P; O (+4) Q5) In a certain code language, "CASIO" is
=> S; T (+5) => Y; E (+6) =>K (SGPSYK) written as "3119915". How is "CITIZEN"
written in that code language?
now the letters are reversed and KYSPGS
Solution:
B (+1) => C; R (+2) => T; A (+3) => D; N (+4)
=> R; D (+5) => I (CTDRI)
now reverse the letters and IRDTC is the code C A S I O
Similarly, ↓ ↓ ↓ ↓ ↓
M (+1) => N; O (+2) => Q; B (+3) => E; I (+4) 3 1 19 9 15
=> M; L (+5) => Q; E (+6) => K (NQEMQK)
Similarly,
now reverse the letters and KQMEQN is the
C I T I Z E N
code.
↓ ↓ ↓ ↓ ↓ ↓ ↓
Q3) In a certain code language, "PEN-TAN"
is written as "0". How is "DEN-COB" 3 9 20 9 26 5 14
written in that code language?
Code for CITIZEN is 3920926514
Solution:
2
1. Pattern-Based Coding and Decoding: Example 2: If the code of the word TEACHER
is XHDIKHL, what will be the code of HEAT?
To solve pattern-based questions quickly, you
should learn the positions of the letters in Solution: Observe the question closely and you
English alphabet. For this, you should learn the should be able to conclude that there is no
basic five letters of the non-dictionary word E- relation between the letters of the word
J-O-T-Y which are respectively positioned at 5, TEACHER and the letters of the given code,
10, 15, 20 and 25th position. With these five but the letters of the word HEAT are already
'landmarks', the positions of all the other letters contained in the parent word TEACHER. So,
can be easily found. Let us take the case of 'R'. picking the corresponding code from the parent
Since R is two letters behind T, so its position word, the code for HEAT will be KHDX.
will be 18.
3. Coding of a word in a sentence:
Example 1: The questions covered in this type
In this type of coding questions, generally three
are like "If TEACHER is coded as VGCEJGT,
or four sentences or words are given with
how will you code HUSBAND"?
sentences or words containing codes. You just
Solution: Here, you need to check what logic of have to check for the common words/letters in
coding is applied between the letters of the the sentences/words and corresponding
given word and that of the code. Here code for common words/letters in the codes to get the
T is V i.e. 2 is added in the position of T to get answer e.g. "Ram is Smart" is coded as LPG
its code. The same thing happens for the other and "Smart means intelligent" is coded as SLY.
letters too. Now, to write the code of the word From this, you should analyze that the only
HUSBAND, you need to add 2 in the positions common word is 'smart' and the only common
of the letters of the HUSBAND and its code letter is 'L', which means that 'L' is the code for
will be JWUDCPF. the word 'smart'. In such cases, the codes are
not seen at the corresponding positions but for
2. Random pattern coding and decoding:
the common words.
In this type of questions, the code of the word is
Q1) If MARBLES is coded as PDUEOHV,
written randomly and the question asked
then how will GIN be coded as?
contains the same letters as given in the original
word. In order to answer this, you just have to Solution:
check for the code of each letter from the given
M (+3) → P
word and place the corresponding code for
every letter. A (+3) → D
1
, CODING & DECODING
R (+3) → U (P+E+N)-(T+E+N)
B (+3) → E 16+5+14-20+5+14
L (+3) → O =35-35=0
E (+3) → H P+E+N=35
S (+3) → V DEN-COB= (4+5+14) - (3+15+2) =3
Similarly, GIN → JLQ Q4) If UNCOVER is coded as FMXLEVI,
then how will TIP be coded as?
Q2) In a certain code language, "REMOTE"
is written as "KYSPGS" and "BRAND" is Solution:
written as "IRDTC". How is "MOBILE"
Here, we have decoded alphabets are in reverse
written in that code language?
order sequence to the coded alphabets. So, the
Solution: ‘TIP’ is coded as ‘GRK’.
R (+1) => S; E (+2) => G; M (+3) => P; O (+4) Q5) In a certain code language, "CASIO" is
=> S; T (+5) => Y; E (+6) =>K (SGPSYK) written as "3119915". How is "CITIZEN"
written in that code language?
now the letters are reversed and KYSPGS
Solution:
B (+1) => C; R (+2) => T; A (+3) => D; N (+4)
=> R; D (+5) => I (CTDRI)
now reverse the letters and IRDTC is the code C A S I O
Similarly, ↓ ↓ ↓ ↓ ↓
M (+1) => N; O (+2) => Q; B (+3) => E; I (+4) 3 1 19 9 15
=> M; L (+5) => Q; E (+6) => K (NQEMQK)
Similarly,
now reverse the letters and KQMEQN is the
C I T I Z E N
code.
↓ ↓ ↓ ↓ ↓ ↓ ↓
Q3) In a certain code language, "PEN-TAN"
is written as "0". How is "DEN-COB" 3 9 20 9 26 5 14
written in that code language?
Code for CITIZEN is 3920926514
Solution:
2
