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Coding-Decoding Questions with Solutions

48 questions28 easy19 medium1 hard

Coding-decoding questions give a word, number or sentence written in a secret code and ask you to work out the rule, then apply it to a new word. This topic covers letter coding (shifting letters forward or backward), number coding, substitution coding, mixed letter-number-symbol coding, and sentence or word-group coding. The key skill is spotting the pattern quickly. Memorising the position of each letter in the alphabet (A = 1 to Z = 26) and its reverse position (A = 26 to Z = 1) speeds up most letter-shift questions. For sentence coding, compare two sentences that share a word to find which code belongs to it. Check your rule against every letter before using it, since many questions use different shifts for alternate letters. Practise the coding-decoding questions below, each with a step-by-step solution showing how the pattern is found.

All QuestionsEasyMediumHard
  1. Q21.

    In a certain language, DENMARK is coded as FCPKCPM. Find the code of SINGAPORE.

    A. UGPECNQPGB. UGPECNQTCC. UGPEDNQTCD. UGPFCNRPG
    mediumAsked in NIMCET 2023View solution ›
  2. Q22.

    For security reasons, a bank manager decided to encrypt the account numbers on the server. If A/C No. 46873 is coded as 91317157, then 52191 is coded as

    A. 5219152B. 4108041C. 1043293D. 1153193
    mediumAsked in NIMCET 2023View solution ›
  3. Q23.

    In a code language, FRIEND is coded as GTLISJ. Which of the following is coded as HWDVI in that language?

    A. HAPPYB. GUARDC. BEADSD. SPEED
    easyAsked in NIMCET 2013View solution ›
  4. Q24.

    If 'ROAST' is coded as 'PQYUR' in a certain language, then 'SLOPPY' is coded in that language as

    A. MRNAQNB. NRMNQAC. QNMRNAD. RANMNQ
    easyAsked in NIMCET 2012View solution ›
  5. Q25.

    If 'lelibroon' means 'yellow hat', 'plekafroti' means 'flower garden' and 'frotimix' means 'garden salad', then which word could mean 'yellow flower'?

    A. lelifrotiB. leliplekaC. plekabroonD. frotibroon
    easyAsked in NIMCET 2012View solution ›
  6. Q26.

    In a certain code, RIPPLE is written as 613382 and LIFE is written as 8192. How is FILLER written in that code?

    A. 918826B. 318286C. 618826D. 328816
    easyAsked in NIMCET 2011View solution ›
  7. Q27.

    If REASON is coded as 5 and BELIEVED as 7, what is the code number for GOVERNMENT?

    A. 6B. 8C. 9D. 10
    easyAsked in NIMCET 2010View solution ›
  8. Q28.

    In a certain code language, '617' means 'sweet and hot', '735' means 'coffee is sweet' and '263' means 'tea is hot'. Which of the following would mean 'coffee is hot'?

    A. 731B. 536C. 367D. 753
    mediumAsked in NIMCET 2010View solution ›
  9. Q29.

    If UNDERSTAND is coded as 1234567823, how will START be coded?

    A. 56781B. 83243C. 73652D. 67857
    easyAsked in NIMCET 2010View solution ›
  10. Q30.

    In a certain code language, "LEGAL" is written as "1257112". In the same code language, how will "LAW" be written?

    A. 12123B. 12224C. 12124D. 12126
    easyAsked in MAH LLB 3 Year CET 2026View solution ›
  11. Q31.

    In an artificial language, "KIRBAL" = SCHOOL BUILDING, "KIRMAN" = SCHOOL STUDENTS, and "KIRPAT" = SCHOOL FIELD. What does KIR represent?

    A. StudentsB. FieldC. BuildingD. School
    easyAsked in MAH LLB 3 Year CET 2026View solution ›
  12. Q32.

    If in a certain language MYSTIFY is coded as NZTUJGZ, how is NEMESIS coded in that language?

    A. OFNFTJTB. OHNFTMTC. OANFKJTD. OBPFTJT
    easyAsked in MAH LLB 3 Year CET 2 April Shift-2 2026View solution ›
  13. Q33.

    Here are some words translated from an artificial language: granamelke means big tree. pinimelke means little tree. melkehoon means tree house. hoonpini means house little. Which word could mean big little house?

    A. granapinihoonB. hoongranapiniC. pinimelegraD. melkegranahoon
    mediumAsked in MAH LLB 3 Year CET 2 April Shift-2 2026View solution ›
  14. Q34.

    In a certain code, DOES is written as 5$3% and SITE is written as %4#3. How is EDIT written in that code?

    A. 3#4$B. %3#5C. 354#D. 4#5$
    easyAsked in NIMCET 2020View solution ›
  15. Q35.

    If in a certain language, ITNIETAM is the code for INTIMATE, which word has the code TREVNIETARBI?

    A. INVRETIBRATEB. INVERTIBARTEC. INVERTIBRATED. INVERTIBRETA
    mediumAsked in NIMCET 2020View solution ›
  16. Q36.

    If Z = 52 and ACT = 48, then BAT will be equal to

    A. 46B. 39C. 44D. 41
    easyAsked in NIMCET 2021View solution ›
  17. Q37.

    In a certain code language, "do re me" means "he is late"; "fa me la" means "she is early" and "so ti do" means "he leaves soon". Which word in the language means "late"?

    A. laB. doC. meD. re
    easyAsked in NIMCET 2021View solution ›
  18. Q38.

    If COUNSEL is coded as BITIRAK, then GUIDANCE is coded as

    A. EOHYZKBBB. FOHYZJBBC. FPHZZKABD. HOHYBJBA
    hardAsked in NIMCET 2021View solution ›
  19. Q39.

    If 'A3T15R' stands for 'ACTOR' and 'D1T5' stands for 'DATE', how will you code 'ROTATE'?

    A. R16T1T5B. R15T1T5C. R15T1T16D. R15C1&7
    easyAsked in NIMCET 2021View solution ›
  20. Q40.

    If in a certain language KOLKOTA is coded as LPMLPUB, how is MUMBAI coded in that language?

    A. NVNBCJB. NVNCBJC. NUNBCHD. OVNBBH
    easyAsked in NIMCET 2022View solution ›
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