Coding-Decoding Reasoning Questions

In this section we will be discussing Multiple choice Reasoning Questions on Coding-Decoding. The coding-Decoding test is set up to judge the candidate’s ability to decipher the rules that code a particular word/message and break the code to decipher the message.

These Example Questions appear in almost all Competitive Exams and helpful in College admission, GRE and CAT exams. Regular practice of these Practice Tests can help you in improving Test scores.

We will be solving problems related to following type of Coding.

Letter Coding – The letters in a word are replaced by certain other letters according to a specific rule to form its code. The candidate is required to detect the coding pattern and answer the question accordingly.

Number/Symbol Coding – In these questions, either numerical code values or alphabetical code are assigned. The candidate is required to analyse the code as per the questions.

Deciphering Message Word Codes -In these questions, some messages are given in the coded language and the code for a particular word or message is asked. To analyse such messages.

Q 1. In a certain code ,FAVOUR is written as EBUPTS. How is DANGER written in that code ?
  • CBFFDS
  • CBMHDS
  • EBFHDS
  • EBFFHS

Q 2. In a certain code ,TWINKLE is written as SVHOJKD. How is FILTERS written in that code … ?
  • EHKSDQR
  • EHKUDQR
  • EGKUDQR
  • GJMSFST

Q 3. In a certain code ,BELIEF is written as AFKKDI. How is SELDOM written in that code
  • RDKCNL
  • RFKENM
  • RFKFNP
  • TFKENP

Q 4. In a certain code ,SPRING is written as UNUFRC. How is MOBILE written in that code …?
  • KQEFPA
  • OMDGNC
  • OMDGPA
  • OMEFPA

Q 5. In a certain code ,FLOWER is written as UOLDVI. How is TERMINAL written in that code ?
  • FLKPMROZ
  • GVINRMZO
  • RVNIGLKA
  • MNIVGYEO

Q 6. In a certain code ,DECEMBER is written as ERMBCEDE, which of the following word will be written as ERMBVENO in that code ?
  • AUGUST
  • SEPTEMBER
  • OCTOBER
  • NOVERMBER


Q 7. In a certain code ,SOLID is written as WPSLPIMFHA , what does the code word ATEXXQIBVO refer to ?
  • WATER
  • WAGER
  • EAGER
  • WAFER

Q 8. In a certain coding-decoding series ,POPULAR is written as QPQVMBS, which word would be coded as GBNPVT ?
  • FARMER
  • FAMOUS
  • FRAMES
  • FARMES

Q 9. In a certain code FIRE is written as QHOE and MOVE as ZMWE. Following the same rule of coding, what should be the code for OVER ?
  • MWED
  • MWEO
  • MWOE
  • MWZO

Q 10. In a certain code SHEEP is written as GAXXR and BLEAT as HPXTN. How can SLATE be written in that code ?
  • GPTNX
  • GPTXN
  • GPXNT
  • PTGXN

Q 11. If the word PORTER can be coded as MBNZQN , how can REPORT be written in same code ?
  • NQMNBZ
  • NQMBNZ
  • NBQMNZ
  • NQBMNZ

Q 12. In a certain code STOVE is written as FNBLK,then how will VOTES will be written in the same code ?
  • FLKBN
  • LBNKF
  • LKNBF
  • LNBKF

Q 13. If REQUEST is written as S2R5TU , then how will ACID be written in a certain coding-decoding pattern ?
  • 1D3E
  • IC94
  • BDJE
  • B3J4

Q 14. If A = 2, M = 26, Z = 52 then BET is ..?
  • 44
  • 54
  • 64
  • 72

Q 15. If GO = 32, SHE = 49, then SOME will be equal to ..?
  • 56
  • 58
  • 62
  • 64

Q 16. If REASON is coded as 5 and BELIEVED as 7, then what is the code for GOVERNMENT ?
  • 6
  • 8
  • 9
  • 10

Q 17. In a certain coding-decoding language, DESK is written as #$52 and RIDE is written as %7$#. How is RISK written in that code ?
  • %725
  • %752
  • %7#2
  • %7$#

Q 18. In a certain code, EAT is written as 318 and CHAIR is written as 24156. What will TEACHER be written as ..?
  • 8312346
  • 8321436
  • 8312436
  • 8313426

Q 19. In a certain code, TWENTY is written as 863985 and ELEVEN as 323039, how is TWELVE written in that code ..?
  • 863063
  • 863584
  • 863903
  • 863203

Q 20. If White is called blue, blue is called red, red id called yellow,yellow is called green, green is called black, black is called violet and violet is called orange then what would be the colour of human blood ..?
  • RED
  • GREEN
  • YELLOW
  • ORANGE

Q 21. If orange is called butter, butter is called soap, soap is called ink, ink is called honey and honey is called orange, which of the following is used for washing clothes ..?
  • Honey
  • Butter
  • Soap
  • Ink

Q 22. If black means pink, pink means blue, blue means white, white means yellow, yellow means red, red means brown, then what is the colour of clear sky .. ?
  • Brown
  • White
  • Yellow
  • Pink

Q 23. If dust is called air, air is called fire, fire is called water water is called colour, colour is called rain and rain is called dust, then where does fish lives ..?
  • Fire
  • Water
  • Colour
  • Dust

Q 24. If eraser is called box,box is called pencil, pencil is called sharpener, sharpener is called bag, what will a person write with ..?
  • Eraser
  • Box
  • Pencil
  • Sharpener

Q 25. In a certain code language ‘nee muk pic’ means grave and concern, ‘ill dic so’ means ‘every body else’ and ‘tur muk so’ means ‘body and soul’. Which of the following would mean ‘every concern’ …?
  • dic pic
  • ill nee
  • pic nee
  • Cannot be determined

Q 27. In a certain code , ‘lee ra de’ means ‘what was it’, ‘mo nil’ means ‘you go’, ‘nil pom ra’ means ‘you like it’ , and ‘tok lee fo’ means ‘she was sick’. How will you write ‘what you like’ in this code…?
  • nil ra lee
  • pom nil ra
  • pom ra lee
  • None of the above

Q 28. In a certain code language, ‘123’ mean ‘bright little boy’, ‘145’ means ‘tall big boy’ and ‘637’ means ‘beautiful little flower’. What digit in that language means ‘bright’ ..?
  • 1
  • 2
  • 3
  • 4

Q 29. In a certain coding-decoding language, ‘134’ means ‘good and tasty’, ‘478’ means ‘see good pictures’ and ‘729’ means ‘pictures are faint’. Which digit stands for ‘see’ ..?
  • 8
  • 9
  • 1
  • 2

Q 30. In a certain code language, ‘234’ means ‘spark and fire’, ‘456’ means ‘sparks is cause’ and ‘258’ means ‘fire is effect’. Which digit stands for ’cause’ ….?
  • 4
  • 5
  • 6
  • 7

For more Reasoning Questions, please refer here.

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