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Coding Decoding Worksheet

Logical reasoning lesson 8: Coding–decoding · Set 45 · 40 questions
TalentJR

How to think it through (Letter by letter): Write the word above its code and compare each pair of letters. Find the rule: the same move (+1, −2 …), opposite letters (A ↔ Z, B ↔ Y), or the word reversed. Apply the same rule to the new word. After Z comes A again.

NameDateTime takenScore ___ / 40
  1. 1.If DOG is written as CNF, how is CAKE written in the same code? (a) DBLF (b) BZJD (c) AYIC (d) CAKE
  2. 2.If MOON is written as PQQO, how is FISH written in the same code? (a) FQGD (b) HSIF (c) JUKH (d) HKUJ
  3. 3.If RAIN is written as QZHM, how is FROG written in the same code? (a) DPME (b) GSPH (c) EQNF (d) FROG
  4. 4.If DRUM is written as BPSK, how is LION written in the same code? (a) JGML (b) NKQP (c) IFLK (d) KHNM
  5. 5.If CAT is written as SZB, how is DESK written in the same code? (a) CDRJ (b) LTFE (c) KSED (d) JRDC
  6. 6.If HAND is written as KDQG, how is DOG written in the same code? (a) ALD (b) FQI (c) HSK (d) GRJ
  7. 7.If BALL is written as YZOO, how is JUMP written in the same code? (a) KVNQ (b) RGOL (c) PEMJ (d) QFNK
  8. 8.If JUMP is written as OLTI, how is MILK written in the same code? (a) KLIM (b) JKHL (c) LMJN (d) LHKJ
  9. 9.If BOAT is written as VCQD, how is HAND written in the same code? (a) BLYF (b) FPCJ (c) JCPF (d) DNAH
  10. 10.If SUN is written as NUS, how is STAR written in the same code? (a) RATS (b) SBUT (c) QZSR (d) TUBS
  11. 11.If FISH is written as HSIF, how is COLD written in the same code? (a) CKNB (b) DLOC (c) DPME (d) EMPD
  12. 12.If CAT is written as ECV, how is BOOK written in the same code? (a) CPPL (b) ZMMI (c) ERRN (d) DQQM
  13. 13.If STAR is written as VWDU, how is WIND written in the same code? (a) ZLQG (b) YKPF (c) AMRH (d) TFKA
  14. 14.If LAMP is written as OZNK, how is PARK written in the same code? (a) LAJQ (b) QBSL (c) JYHO (d) KZIP
  15. 15.If KITE is written as PRGV, how is NEST written in the same code? (a) MVHG (b) NWIH (c) LUGF (d) OFTU
  16. 16.If DESK is written as MUGF, how is GOLD written in the same code? (a) DLOG (b) IQNF (c) BJME (d) FNQI
  17. 17.If DESK is written as LTFE, how is TREE written in the same code? (a) EERT (b) USFF (c) DDQS (d) FFSU
  18. 18.If BOOK is written as DQQM, how is DESK written in the same code? (a) FGUM (b) GHVN (c) EFTL (d) BCQI
  19. 19.If TREE is written as DDQS, how is PEN written in the same code? (a) MDO (b) ODM (c) NEP (d) OFQ
  20. 20.If CAKE is written as AYIC, how is BELL written in the same code? (a) YBII (b) DGNN (c) ZCJJ (d) ADKK
  21. 21.If KITE is written as ETIK, how is MOON written in the same code? (a) OPPN (b) NPPO (c) MNNL (d) NOOM
  22. 22.If DESK is written as JRDC, how is MOON written in the same code? (a) OPPN (b) LNNM (c) MNNL (d) NOOM
  23. 23.If HAND is written as GZMC, how is DESK written in the same code? (a) EFTL (b) BCQI (c) CDRJ (d) DESK
  24. 24.If TREE is written as FFSU, how is KITE written in the same code? (a) DSHJ (b) FUJL (c) ETIK (d) LJUF
  25. 25.If BOAT is written as DQCV, how is LION written in the same code? (a) MJPO (b) JGML (c) OLRQ (d) NKQP
  26. 26.If FROG is written as GORF, how is FISH written in the same code? (a) HSIF (b) GJTI (c) ITJG (d) GRHE
  27. 27.If FISH is written as HSIF, how is BOAT written in the same code? (a) UBPC (b) SZNA (c) CPBU (d) TAOB
  28. 28.If DESK is written as LTFE, how is LAMP written in the same code? (a) QNBM (b) PMAL (c) OLZK (d) MBNQ
  29. 29.If FROG is written as UILT, how is JUMP written in the same code? (a) QFNK (b) PEMJ (c) KVNQ (d) RGOL
  30. 30.If MILK is written as KLIM, how is PEN written in the same code? (a) QFO (b) OFQ (c) MDO (d) NEP
  31. 31.If HAND is written as DNAH, how is BALL written in the same code? (a) MMBC (b) LLAB (c) CBMM (d) KKZA
  32. 32.If LION is written as NKQP, how is PARK written in the same code? (a) RCTM (b) SDUN (c) NYPI (d) QBSL
  33. 33.If DOG is written as BME, how is COLD written in the same code? (a) ZLIA (b) EQNF (c) BNKC (d) AMJB
  34. 34.If DESK is written as MUGF, how is BELL written in the same code? (a) JJCZ (b) LLEB (c) DGNN (d) NNGD
  35. 35.If DOG is written as FNC, how is FROG written in the same code? (a) GORF (b) EQNF (c) HPSG (d) FNQE
  36. 36.If FROG is written as UILT, how is TREE written in the same code? (a) USFF (b) HJWW (c) GIVV (d) FHUU
  37. 37.If DESK is written as FGUM, how is MOON written in the same code? (a) PRRQ (b) NPPO (c) KMML (d) OQQP
  38. 38.If FROG is written as UILT, how is SUN written in the same code? (a) IGN (b) GEL (c) TVO (d) HFM
  39. 39.If BOOK is written as DQQM, how is FISH written in the same code? (a) ILVK (b) DGQF (c) HKUJ (d) GJTI
  40. 40.If NEST is written as QHVW, how is COLD written in the same code? (a) FROG (b) EQNF (c) ZLIA (d) GSPH

Answer key

  1. BZJD
  2. JUKH
  3. EQNF
  4. JGML
  5. JRDC
  6. GRJ
  7. QFNK
  8. JKHL
  9. FPCJ
  10. RATS
  11. DLOC
  12. DQQM
  13. ZLQG
  14. KZIP
  15. MVHG
  16. FNQI
  17. FFSU
  18. FGUM
  19. MDO
  20. ZCJJ
  21. NOOM
  22. MNNL
  23. CDRJ
  24. FUJL
  25. NKQP
  26. HSIF
  27. TAOB
  28. QNBM
  29. QFNK
  30. NEP
  31. LLAB
  32. RCTM
  33. AMJB
  34. NNGD
  35. FNQE
  36. GIVV
  37. OQQP
  38. HFM
  39. HKUJ
  40. FROG

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