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All questions of Coding-Decoding for Class 7 Exam
In a certain code, KAVERI is written as VAKIRE, how is MYSORE written in that code?- a)SYMERO
- b)SYMEOR
- c)EROSYM
- d)SMYERP
Correct answer is option 'A'. Can you explain this answer?
In a certain code, KAVERI is written as VAKIRE, how is MYSORE written in that code?
a)
SYMERO
b)
SYMEOR
c)
EROSYM
d)
SMYERP
|
Amit Sharma answered |
MYSORE ⟶ MYS/ORE ⟶
SYM/ERO ⟶ SYMERO.
SYM/ERO ⟶ SYMERO.
In a coding system, SHEEP is written as GAXXR and BLEAT as HPXTN. How can SLATE be written in this coding system?- a)PTGXN
- b)GPXMT
- c)GPTXN
- d)GPTNX
Correct answer is option 'C'. Can you explain this answer?
In a coding system, SHEEP is written as GAXXR and BLEAT as HPXTN. How can SLATE be written in this coding system?
a)
PTGXN
b)
GPXMT
c)
GPTXN
d)
GPTNX
|
Rajesh Joshi answered |
Letter SH E P B L A T
Code GA X R H P T N
The code for SLATE is GPTNX.
Code GA X R H P T N
The code for SLATE is GPTNX.
In a certain code, O is written as D, A as F, M as I, S as O, N as P, E as M, I as C, P as Q and C as R, then how will COMPANIES be written in that code?- a)SMINCPAMO
- b)SEIACPAMO
- c)SEINMCIPAMO
- d)RDIQFPCMO
Correct answer is option 'D'. Can you explain this answer?
In a certain code, O is written as D, A as F, M as I, S as O, N as P, E as M, I as C, P as Q and C as R, then how will COMPANIES be written in that code?
a)
SMINCPAMO
b)
SEIACPAMO
c)
SEINMCIPAMO
d)
RDIQFPCMO
|
Prepworks Coaching answered |
Substituting the letters of the given word with their respective codes.
In a code language, STARK is written as LBFMG and MOBILE is written as TNRSPJ. How is BLAME written in that code?- a)TSFGJ
- b)TSFRJ
- c)RPFTJ
- d)NJFTP
Correct answer is option 'C'. Can you explain this answer?
In a code language, STARK is written as LBFMG and MOBILE is written as TNRSPJ. How is BLAME written in that code?
a)
TSFGJ
b)
TSFRJ
c)
RPFTJ
d)
NJFTP
|
Priyanka Sharma answered |
Letter S T A R K M O B I L E
Code L B F M G T N R S P J
The code for BLAME is RPFTJ.
Code L B F M G T N R S P J
The code for BLAME is RPFTJ.
If POND is coded as RSTL, how is DEAR written in that code?- a)GHIZ
- b)FIGZ
- c)JIGZ
- d)GHIJ
Correct answer is option 'B'. Can you explain this answer?
If POND is coded as RSTL, how is DEAR written in that code?
a)
GHIZ
b)
FIGZ
c)
JIGZ
d)
GHIJ
|
Kirti Chakraborty answered |
The first, second, third and fourth letters of the word are moved two, four, six, and eight letters forward respectively to obtain the code.
In a certain code, FAVOUR is written as EBUPTS, how is DRAGON written in that code?- a)CBFFDS
- b)CBMHDS
- c)CSZHNO
- d)EBHHFS
Correct answer is option 'C'. Can you explain this answer?
In a certain code, FAVOUR is written as EBUPTS, how is DRAGON written in that code?
a)
CBFFDS
b)
CBMHDS
c)
CSZHNO
d)
EBHHFS
|
|
Anita Menon answered |
The first, third and fifth letters are each moved one step backward, while the second, fourth and sixth letters are each moved one step forward to obtain the corresponding letters of code.
In a certain code, REFRIGERATOR is coded as ROTAREGIRFER. Which word would be coded as NOITINUMMA?- a)ANMOMIUTNI
- b)AMMUNITION
- c)NMMUNITIOA
- d)AMNTONI
Correct answer is option 'B'. Can you explain this answer?
In a certain code, REFRIGERATOR is coded as ROTAREGIRFER. Which word would be coded as NOITINUMMA?
a)
ANMOMIUTNI
b)
AMMUNITION
c)
NMMUNITIOA
d)
AMNTONI
|
|
Anita Menon answered |
The order of letters of the word is reversed in the code. So, reverse the order of the letters in the code to get the word.
In a certain language, SIGHT is written as FVTUC, how is REVEAL written in the same language?- a)ERIRNY
- b)DQHQMX
- c)FSJSOZ
- d)YNRIRE
Correct answer is option 'A'. Can you explain this answer?
In a certain language, SIGHT is written as FVTUC, how is REVEAL written in the same language?
a)
ERIRNY
b)
DQHQMX
c)
FSJSOZ
d)
YNRIRE
|
Geetika Shah answered |
Each letter in the word is moved thirteen steps forward to obtain the corresponding letter of the code.
If R is denoted by N, D is denoted by T, I by U, O by I, E by R, T by L, U by C, N by K and C by G, then how will the word INTRODUCE be written?- a)ULNITCGRK
- b)UNIGRKTL
- c)UKLNITCGR
- d)UNICKIOR
Correct answer is option 'C'. Can you explain this answer?
If R is denoted by N, D is denoted by T, I by U, O by I, E by R, T by L, U by C, N by K and C by G, then how will the word INTRODUCE be written?
a)
ULNITCGRK
b)
UNIGRKTL
c)
UKLNITCGR
d)
UNICKIOR
|
|
Geetika Shah answered |
Substituting the letters of the given word with their respective codes,
If a certain code, CONDEMN is written as CNODMEN. How will TEACHER be written in that code?- a)TAECHER
- b)TAECEHR
- c)TCAEHER
- d)TAEECHR
Correct answer is option 'B'. Can you explain this answer?
If a certain code, CONDEMN is written as CNODMEN. How will TEACHER be written in that code?
a)
TAECHER
b)
TAECEHR
c)
TCAEHER
d)
TAEECHR
|
Varun Kapoor answered |
The last letter of the word remains unaltered in the code. The first six letters of the word are divided into two groups of three letters each and then, in each group, of three letters each and then, in each group, the last two letters are written in a reverse order.
In a certain code, JANUARY, is written as RYUAANJ. Which word will be written as ERMBCEDE in that code?- a)DECEMBER
- b)SEPTEMBER
- c)OCTOBER
- d)AUGUST
Correct answer is option 'A'. Can you explain this answer?
In a certain code, JANUARY, is written as RYUAANJ. Which word will be written as ERMBCEDE in that code?
a)
DECEMBER
b)
SEPTEMBER
c)
OCTOBER
d)
AUGUST
|
|
Ananya Das answered |
The word is divided into groups of two letters and first word is divided into one group.
In a certain code language, BOARD is written as EQBNC. How will the word CLIMB be written in that language?- a)FNJRD
- b)DKJLF
- c)CLJKD
- d)DNHMB
Correct answer is option 'D'. Can you explain this answer?
In a certain code language, BOARD is written as EQBNC. How will the word CLIMB be written in that language?
a)
FNJRD
b)
DKJLF
c)
CLJKD
d)
DNHMB
|
Vaibhav Malik answered |
The letters of the word are written in a reverse order and on the group of letters so obtained, the first, third and fifth letters are each moved one step forward while the second and fourth letters are each moved one step backward to get the code.
If the word PORTER can be coded as MBNZQN. How can REPORT be written?- a)NQBMNZ
- b)NQMNBZ
- c)NBQMNZ
- d)NQMBNZ
Correct answer is option 'D'. Can you explain this answer?
If the word PORTER can be coded as MBNZQN. How can REPORT be written?
a)
NQBMNZ
b)
NQMNBZ
c)
NBQMNZ
d)
NQMBNZ
|
Swara Mehta answered |
Given,PORTER can be code as MBNZQN.
There is not any definite coding pattern present between both the set of alphabets.
Here, both the set of alphabets directly correspond to each other as:
Clearly, the word REPORT can be written as NQMBNZ.
Hence, option (D) is the correct answer.
If MINERAL is written as QRSTUVW and SOUND is written as ABCSD, then how will READER be written in the same code?- a)QDZCDQ
- b)UTVDTU
- c)TUDVUT
- d)SBFEFS
Correct answer is option 'B'. Can you explain this answer?
If MINERAL is written as QRSTUVW and SOUND is written as ABCSD, then how will READER be written in the same code?
a)
QDZCDQ
b)
UTVDTU
c)
TUDVUT
d)
SBFEFS
|
Maheshwar Verma answered |
Given, MINERAL is written as QRSTUVW and SOUND is written as ABCSD.
There isn't any definite coding pattern between the given word and its corresponding word. We have,
Clearly, the code for the word READER is UTVDTU.
Hence, option (B) is the correct answer.
In a certain code language, HAND is written as SZMW then what will be the code of MILK?- a)ORNP
- b)RNOP
- c)NROP
- d)PNRO
Correct answer is option 'C'. Can you explain this answer?
In a certain code language, HAND is written as SZMW then what will be the code of MILK?
a)
ORNP
b)
RNOP
c)
NROP
d)
PNRO
|
Sai Kumar answered |
Given, HAND is written as SZMW .
Here, the code is n th letter from the beginning of the English alphabet is replaced by n th letter from the end of the English alphabet.
Similarly, MILK is coded as NROP.
Hence, option (C) is the correct answer.
If in a certain language, MADRAS is coded as NBESBT, how is BOMBAY coded in that language?- a)CPNCBZ
- b)CPNCBX
- c)CPOCBZ
- d)CQOCBZ
Correct answer is option 'A'. Can you explain this answer?
If in a certain language, MADRAS is coded as NBESBT, how is BOMBAY coded in that language?
a)
CPNCBZ
b)
CPNCBX
c)
CPOCBZ
d)
CQOCBZ
|
Lavanya Menon answered |
Each letter in the word is moved one step forward to obtain the corresponding letter of the code.
If in a certain language SHIFT is coded as RFFBO, which word would be coded as LKUMB?- a)KJTLA
- b)MJVLC
- c)MMXQG
- d)MLVNC
Correct answer is option 'C'. Can you explain this answer?
If in a certain language SHIFT is coded as RFFBO, which word would be coded as LKUMB?
a)
KJTLA
b)
MJVLC
c)
MMXQG
d)
MLVNC
|
Anshu Basu answered |
The first, second, third, fourth and fifth letter in the word are respectively one, two, three, four and five steps ahead of the corresponding letter of the code.
In a certain code, ROAD is written URDG, how is SWAN written in that code?- a)VZCP
- b)UXDQ
- c)VZDQ
- d)VXDQ
Correct answer is option 'C'. Can you explain this answer?
In a certain code, ROAD is written URDG, how is SWAN written in that code?
a)
VZCP
b)
UXDQ
c)
VZDQ
d)
VXDQ
|
Snehal Basak answered |
In the word 'ROAD', each letter is moved 3 steps forward to obtain the coded word URDG.
Similarly, by moving each letter of the word 'SWAN', 3 steps forward we will get the coded word 'VZDQ'.
Hence, option (B) is the correct answer.
In a code language, TUTORIAL is written as DODNGLCF and DANCE is written as YCJMZ, how can EDUCATION be written in that code?
- a)ZJDONCGJT
- b)ZYMODCLNJ
- c)ZYOMDCNJ
- d)None of these
Correct answer is option 'D'. Can you explain this answer?
In a code language, TUTORIAL is written as DODNGLCF and DANCE is written as YCJMZ, how can EDUCATION be written in that code?
a)
ZJDONCGJT
b)
ZYMODCLNJ
c)
ZYOMDCNJ
d)
None of these
|
|
Anisha Kulkarni answered |
T U T O R I A L and D A N C E
D O D N G L C F Y C J M Z
so, code for EDUCATION is ZYOMCDLNJ.Code Transformation Explanation
- TUTORIAL to DODNGLCF
- T -> D
- U -> O
- T -> D
- O -> N
- R -> G
- I -> L
- A -> C
- L -> F
- DANCE to YCJMZ
- D -> Y
- A -> C
- N -> J
- C -> M
- E -> Z
- Applying the same pattern to EDUCATION
- E -> Z
- D -> Y
- U -> M
- C -> O
- A -> C
- T -> D
- I -> L
- O -> N
- N -> J
Therefore, EDUCATION will be written as ZYOMCDLNJ . So, the correct answer is D: None of these.
- TUTORIAL to DODNGLCF
- T -> D
- U -> O
- T -> D
- O -> N
- R -> G
- I -> L
- A -> C
- L -> F
- DANCE to YCJMZ
- D -> Y
- A -> C
- N -> J
- C -> M
- E -> Z
- Applying the same pattern to EDUCATION
- E -> Z
- D -> Y
- U -> M
- C -> O
- A -> C
- T -> D
- I -> L
- O -> N
- N -> J
Therefore, EDUCATION will be written as ZYOMCDLNJ . So, the correct answer is D: None of these.
In a certain code, CALANDER is written as CLANAEDR. How is CIRCULAR written in that code?- a)CRIUCLRA
- b)ICRCLUAR
- c)CRIUCALR
- d)ICCRLURA
Correct answer is option 'C'. Can you explain this answer?
In a certain code, CALANDER is written as CLANAEDR. How is CIRCULAR written in that code?
a)
CRIUCLRA
b)
ICRCLUAR
c)
CRIUCALR
d)
ICCRLURA
|
Ishaan Chakraborty answered |
For question it is clear that, the second and third letters, fourth and fifth letters, sixth and seventh letters of the word mutually interchange positions to form the code.
So
C ⇒ C
I ⇘ R
R ⇗ I
C ⇘ U
U ⇗ C
L ⇘ A
A ⇗ L
R ⇒ R
so the code for CIRCULAR is CRIUCALR
If DELHI can be coded as CCIDD, how would you code KOLKATA?- a)AJMTVT
- b)AMJXVS
- c)JMIGVNT
- d)WXYZAXT
Correct answer is option 'C'. Can you explain this answer?
If DELHI can be coded as CCIDD, how would you code KOLKATA?
a)
AJMTVT
b)
AMJXVS
c)
JMIGVNT
d)
WXYZAXT
|
|
Prashanth Roy answered |
The first, second, third, fourth, …… letters of the word are moved one, two, three, four, steps backward respectively to obtain the corresponding letters of the code.
If the word RASCALS can be coded as BNMZMTN. How can SALSA be written?- a)MNTMN
- b)TNMNM
- c)MNTLT
- d)TMNMT
Correct answer is option 'A'. Can you explain this answer?
If the word RASCALS can be coded as BNMZMTN. How can SALSA be written?
a)
MNTMN
b)
TNMNM
c)
MNTLT
d)
TMNMT
|
|
Rutuja Reddy answered |
Letter R A S C L
Code B N M Z T
The code for SALSA is MNTMN.
Code B N M Z T
The code for SALSA is MNTMN.
Chapter doubts & questions for Coding-Decoding - Science Olympiad Class 7 2025 is part of Class 7 exam preparation. The chapters have been prepared according to the Class 7 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Class 7 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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