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Coding Decoding Worksheet

Logical reasoning lesson 8: Coding–decoding · Set 21 · 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 DRUM is written as ESVN, how is HAND written in the same code? (a) EOBI (b) GZMC (c) JCPF (d) IBOE
  2. 2.If LION is written as NOIL, how is TREE written in the same code? (a) DDQS (b) USFF (c) EERT (d) FFSU
  3. 3.If SUN is written as HFM, how is PEN written in the same code? (a) LWN (b) QFO (c) KVM (d) JUL
  4. 4.If DRUM is written as OWTF, how is BELL written in the same code? (a) NNGD (b) DGNN (c) JJCZ (d) LLEB
  5. 5.If PEN is written as NEP, how is SUN written in the same code? (a) NUS (b) OVT (c) TVO (d) MTR
  6. 6.If FROG is written as GORF, how is LAMP written in the same code? (a) QNBM (b) OLZK (c) MBNQ (d) PMAL
  7. 7.If TOYS is written as GLBH, how is FROG written in the same code? (a) THKS (b) GSPH (c) UILT (d) VJMU
  8. 8.If BOOK is written as LPPC, how is BALL written in the same code? (a) LLAB (b) MMBC (c) KKZA (d) CBMM
  9. 9.If MILK is written as NJML, how is GOLD written in the same code? (a) IQNF (b) EMPH (c) FNKC (d) HPME
  10. 10.If BELL is written as LLEB, how is CAT written in the same code? (a) TAC (b) DBU (c) SZB (d) UBD
  11. 11.If DRUM is written as ESVN, how is PEN written in the same code? (a) ODM (b) QFO (c) OFQ (d) RGP
  12. 12.If BALL is written as MMBC, how is BOOK written in the same code? (a) JNNA (b) KOOB (c) CPPL (d) LPPC
  13. 13.If NEST is written as PGUV, how is MILK written in the same code? (a) NJML (b) PLON (c) KGJI (d) OKNM
  14. 14.If LAMP is written as OZNK, how is STAR written in the same code? (a) GFYH (b) TUBS (c) HGZI (d) IHAJ
  15. 15.If JUMP is written as KVNQ, how is TREE written in the same code? (a) SQDD (b) FFSU (c) VTGG (d) USFF
  16. 16.If PARK is written as KRAP, how is CAT written in the same code? (a) SZB (b) TAC (c) DBU (d) UBD
  17. 17.If GOLD is written as FNQI, how is TREE written in the same code? (a) CCPR (b) VTGG (c) GGTV (d) EERT
  18. 18.If MILK is written as LHKJ, how is BOAT written in the same code? (a) CPBU (b) BOAT (c) ANZS (d) ZMYR
  19. 19.If TREE is written as EERT, how is LAMP written in the same code? (a) OLZK (b) PMAL (c) MBNQ (d) QNBM
  20. 20.If BOAT is written as YLZG, how is PEN written in the same code? (a) QFO (b) JUL (c) KVM (d) LWN
  21. 21.If BALL is written as YZOO, how is STAR written in the same code? (a) GFYH (b) HGZI (c) TUBS (d) IHAJ
  22. 22.If WIND is written as ZLQG, how is MILK written in the same code? (a) QMPO (b) OKNM (c) JFIH (d) PLON
  23. 23.If FISH is written as HSIF, how is MILK written in the same code? (a) LMJN (b) NJML (c) JKHL (d) KLIM
  24. 24.If SHIP is written as RKJU, how is BALL written in the same code? (a) DCNN (b) LLAB (c) JJYZ (d) NNCD
  25. 25.If JUMP is written as PMUJ, how is BALL written in the same code? (a) MMBC (b) LLAB (c) CBMM (d) KKZA
  26. 26.If HAND is written as CMZG, how is TOYS written in the same code? (a) SYOT (b) SNXR (c) RXNS (d) TZPU
  27. 27.If TREE is written as GIVV, how is CAKE written in the same code? (a) WYOU (b) YAQW (c) DBLF (d) XZPV
  28. 28.If TOYS is written as RXNS, how is HAND written in the same code? (a) DNAH (b) EOBI (c) GZMC (d) CMZG
  29. 29.If JUMP is written as QFNK, how is NEST written in the same code? (a) LUGF (b) MVHG (c) OFTU (d) NWIH
  30. 30.If MILK is written as OKNM, how is DESK written in the same code? (a) EFTL (b) GHVN (c) BCQI (d) FGUM
  31. 31.If RAIN is written as IZRM, how is BOAT written in the same code? (a) YLZG (b) CPBU (c) XKYF (d) ZMAH
  32. 32.If BELL is written as YVOO, how is BOOK written in the same code? (a) YLLP (b) XKKO (c) CPPL (d) ZMMQ
  33. 33.If PEN is written as NEP, how is FROG written in the same code? (a) FNQE (b) GORF (c) GSPH (d) HPSG
  34. 34.If FROG is written as HTQI, how is PARK written in the same code? (a) QBSL (b) SDUN (c) RCTM (d) NYPI
  35. 35.If LION is written as OPJM, how is STAR written in the same code? (a) SBUT (b) TUBS (c) RATS (d) QZSR
  36. 36.If MOON is written as NLLM, how is LION written in the same code? (a) NQKL (b) MJPO (c) PSMN (d) ORLM
  37. 37.If TREE is written as FFSU, how is DOG written in the same code? (a) GOD (b) EPH (c) FNC (d) HPE
  38. 38.If FISH is written as EHRG, how is SUN written in the same code? (a) TVO (b) SUN (c) RTM (d) QSL
  39. 39.If HAND is written as SZMW, how is LAMP written in the same code? (a) NYMJ (b) MBNQ (c) PAOL (d) OZNK
  40. 40.If DESK is written as KSED, how is JUMP written in the same code? (a) QNVK (b) PMUJ (c) KVNQ (d) OLTI

Answer key

  1. IBOE
  2. EERT
  3. KVM
  4. NNGD
  5. NUS
  6. PMAL
  7. UILT
  8. MMBC
  9. HPME
  10. TAC
  11. QFO
  12. LPPC
  13. OKNM
  14. HGZI
  15. USFF
  16. TAC
  17. GGTV
  18. ANZS
  19. PMAL
  20. KVM
  21. HGZI
  22. PLON
  23. KLIM
  24. NNCD
  25. LLAB
  26. RXNS
  27. XZPV
  28. CMZG
  29. MVHG
  30. FGUM
  31. YLZG
  32. YLLP
  33. GORF
  34. RCTM
  35. SBUT
  36. ORLM
  37. HPE
  38. RTM
  39. OZNK
  40. PMUJ

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