OU All In One

Coding and Decoding questions

Letter shifts, reversals and number codes.

1. If ORANGE is written as NQZMFD in a certain code, how is SILVER written in that code?

  1. SILVER
  2. TJMWFS
  3. RHKUDQ
  4. QGJTCP
Answer

C. RHKUDQ Each letter is shifted 1 place backward: SILVER → RHKUDQ.

2. If BOTTLE is coded as ELTTOB, how is SCHOOL coded?

  1. LOOHCS
  2. OOLSCH
  3. TDIPPM
  4. MPPIDT
Answer

A. LOOHCS The word is written in reverse: SCHOOL → LOOHCS.

3. If CANDLE is written as BZMCKD in a certain code, how is FRIEND written in that code?

  1. DPGCLB
  2. GSJFOE
  3. EQHDMC
  4. FRIEND
Answer

C. EQHDMC Each letter is shifted 1 place backward: FRIEND → EQHDMC.

4. If FOREST is written as DMPCQR in a certain code, how is MOBILE written in that code?

  1. OQDKNG
  2. LNAHKD
  3. KMZGJC
  4. JLYFIB
Answer

C. KMZGJC Each letter is shifted 2 places backward: MOBILE → KMZGJC.

5. If MOBILE is written as LNAHKD in a certain code, how is PLANET written in that code?

  1. OKZMDS
  2. NJYLCR
  3. PLANET
  4. QMBOFU
Answer

A. OKZMDS Each letter is shifted 1 place backward: PLANET → OKZMDS.

6. If WINTER is written as XJOUFS in a certain code, how is SILVER written in that code?

  1. UKNXGT
  2. RHKUDQ
  3. SILVER
  4. TJMWFS
Answer

D. TJMWFS Each letter is shifted 1 place forward: SILVER → TJMWFS.

7. If PLANET is written as OKZMDS in a certain code, how is MARKET written in that code?

  1. MARKET
  2. LZQJDS
  3. KYPICR
  4. NBSLFU
Answer

B. LZQJDS Each letter is shifted 1 place backward: MARKET → LZQJDS.

8. If SILVER is written as TJMWFS in a certain code, how is PLANET written in that code?

  1. RNCPGV
  2. PLANET
  3. QMBOFU
  4. OKZMDS
Answer

C. QMBOFU Each letter is shifted 1 place forward: PLANET → QMBOFU.

9. If MARKET is written as OCTMGV in a certain code, how is FLOWER written in that code?

  1. GMPXFS
  2. HNQYGT
  3. IORZHU
  4. DJMUCP
Answer

B. HNQYGT Each letter is shifted 2 places forward: FLOWER → HNQYGT.

10. If BAT = 23 (adding letter positions A = 1 … Z = 26), what is JAM?

  1. 24
  2. 26
  3. 23
  4. 18
Answer

A. 24 J = 10, A = 1, M = 13; total 24.

11. If DOG = 26 (adding letter positions A = 1 … Z = 26), what is BOX?

  1. 31
  2. 37
  3. 41
  4. 43
Answer

C. 41 B = 2, O = 15, X = 24; total 41.

12. If JAM = 24 (adding letter positions A = 1 … Z = 26), what is CUP?

  1. 44
  2. 36
  3. 48
  4. 40
Answer

D. 40 C = 3, U = 21, P = 16; total 40.

13. If BAT = 23 (adding letter positions A = 1 … Z = 26), what is CAT?

  1. 26
  2. 29
  3. 30
  4. 24
Answer

D. 24 C = 3, A = 1, T = 20; total 24.

14. If FRIEND is coded as DNEIRF, how is BRIDGE coded?

  1. FHEJSC
  2. EGDIRB
  3. DGEBRI
  4. CSJEHF
Answer

B. EGDIRB The word is written in reverse: BRIDGE → EGDIRB.

15. If FLOWER is written as GMPXFS in a certain code, how is SCHOOL written in that code?

  1. SCHOOL
  2. UEJQQN
  3. TDIPPM
  4. RBGNNK
Answer

C. TDIPPM Each letter is shifted 1 place forward: SCHOOL → TDIPPM.

16. If MAP = 30 (adding letter positions A = 1 … Z = 26), what is SUN?

  1. 59
  2. 55
  3. 54
  4. 43
Answer

C. 54 S = 19, U = 21, N = 14; total 54.

17. If MAP = 30 (adding letter positions A = 1 … Z = 26), what is HAT?

  1. 28
  2. 36
  3. 27
  4. 29
Answer

D. 29 H = 8, A = 1, T = 20; total 29.

18. If CUP = 40 (adding letter positions A = 1 … Z = 26), what is HAT?

  1. 29
  2. 23
  3. 36
  4. 32
Answer

A. 29 H = 8, A = 1, T = 20; total 29.

19. If GARDEN is coded as NEDRAG, how is SILVER coded?

  1. TJMWFS
  2. REVLIS
  3. VERSIL
  4. SFWMJT
Answer

B. REVLIS The word is written in reverse: SILVER → REVLIS.

20. If FOREST is coded as TSEROF, how is MARKET coded?

  1. TEKRAM
  2. UFLSBN
  3. KETMAR
  4. NBSLFU
Answer

A. TEKRAM The word is written in reverse: MARKET → TEKRAM.

21. If CUP = 40 (adding letter positions A = 1 … Z = 26), what is BAT?

  1. 25
  2. 23
  3. 24
  4. 29
Answer

B. 23 B = 2, A = 1, T = 20; total 23.

22. If MARKET is written as NBSLFU in a certain code, how is FLOWER written in that code?

  1. HNQYGT
  2. FLOWER
  3. GMPXFS
  4. EKNVDQ
Answer

C. GMPXFS Each letter is shifted 1 place forward: FLOWER → GMPXFS.

23. If BAT = 23 (adding letter positions A = 1 … Z = 26), what is BOX?

  1. 41
  2. 31
  3. 39
  4. 40
Answer

A. 41 B = 2, O = 15, X = 24; total 41.

24. If HAT = 29 (adding letter positions A = 1 … Z = 26), what is CUP?

  1. 40
  2. 50
  3. 41
  4. 36
Answer

A. 40 C = 3, U = 21, P = 16; total 40.

25. If BRIDGE is written as DTKFIG in a certain code, how is SILVER written in that code?

  1. TJMWFS
  2. VLOYHU
  3. UKNXGT
  4. QGJTCP
Answer

C. UKNXGT Each letter is shifted 2 places forward: SILVER → UKNXGT.

26. If HAT = 29 (adding letter positions A = 1 … Z = 26), what is JAM?

  1. 24
  2. 22
  3. 19
  4. 18
Answer

A. 24 J = 10, A = 1, M = 13; total 24.

27. If HAT = 29 (adding letter positions A = 1 … Z = 26), what is PEN?

  1. 42
  2. 35
  3. 34
  4. 44
Answer

B. 35 P = 16, E = 5, N = 14; total 35.

28. If DOCTOR is written as EPDUPS in a certain code, how is PLANET written in that code?

  1. QMBOFU
  2. OKZMDS
  3. RNCPGV
  4. PLANET
Answer

A. QMBOFU Each letter is shifted 1 place forward: PLANET → QMBOFU.

29. If PENCIL is coded as LICNEP, how is DOCTOR coded?

  1. SPUDPE
  2. EPDUPS
  3. TORDOC
  4. ROTCOD
Answer

D. ROTCOD The word is written in reverse: DOCTOR → ROTCOD.

30. If BOX = 41 (adding letter positions A = 1 … Z = 26), what is HAT?

  1. 29
  2. 22
  3. 32
  4. 31
Answer

A. 29 H = 8, A = 1, T = 20; total 29.

31. If ORANGE is written as QTCPIG in a certain code, how is CAMERA written in that code?

  1. AYKCPY
  2. ECOGTC
  3. FDPHUD
  4. DBNFSB
Answer

B. ECOGTC Each letter is shifted 2 places forward: CAMERA → ECOGTC.

32. If FLOWER is coded as REWOLF, how is MOBILE coded?

  1. ELIBOM
  2. NPCJMF
  3. FMJCPN
  4. ILEMOB
Answer

A. ELIBOM The word is written in reverse: MOBILE → ELIBOM.

33. If FLOWER is written as DJMUCP in a certain code, how is FOREST written in that code?

  1. ENQDRS
  2. HQTGUV
  3. DMPCQR
  4. CLOBPQ
Answer

C. DMPCQR Each letter is shifted 2 places backward: FOREST → DMPCQR.

34. If PLANET is written as OKZMDS in a certain code, how is FLOWER written in that code?

  1. DJMUCP
  2. FLOWER
  3. GMPXFS
  4. EKNVDQ
Answer

D. EKNVDQ Each letter is shifted 1 place backward: FLOWER → EKNVDQ.

35. If SCHOOL is written as TDIPPM in a certain code, how is PLANET written in that code?

  1. OKZMDS
  2. QMBOFU
  3. RNCPGV
  4. PLANET
Answer

B. QMBOFU Each letter is shifted 1 place forward: PLANET → QMBOFU.

36. If MOBILE is written as NPCJMF in a certain code, how is SCHOOL written in that code?

  1. TDIPPM
  2. RBGNNK
  3. SCHOOL
  4. UEJQQN
Answer

A. TDIPPM Each letter is shifted 1 place forward: SCHOOL → TDIPPM.

37. If MARKET is coded as TEKRAM, how is BOTTLE coded?

  1. FMUUPC
  2. TLEBOT
  3. ELTTOB
  4. CPUUMF
Answer

C. ELTTOB The word is written in reverse: BOTTLE → ELTTOB.

38. If BRIDGE is coded as EGDIRB, how is BOTTLE coded?

  1. FMUUPC
  2. CPUUMF
  3. ELTTOB
  4. TLEBOT
Answer

C. ELTTOB The word is written in reverse: BOTTLE → ELTTOB.

39. If FRIEND is written as DPGCLB in a certain code, how is ORANGE written in that code?

  1. LOXKDB
  2. QTCPIG
  3. NQZMFD
  4. MPYLEC
Answer

D. MPYLEC Each letter is shifted 2 places backward: ORANGE → MPYLEC.

40. If PLANET is coded as TENALP, how is BOTTLE coded?

  1. TLEBOT
  2. FMUUPC
  3. CPUUMF
  4. ELTTOB
Answer

D. ELTTOB The word is written in reverse: BOTTLE → ELTTOB.

41. If MOBILE is written as PRELOH in a certain code, how is MARKET written in that code?

  1. OCTMGV
  2. PDUNHW
  3. QEVOIX
  4. JXOHBQ
Answer

B. PDUNHW Each letter is shifted 3 places forward: MARKET → PDUNHW.

42. If FLOWER is written as HNQYGT in a certain code, how is TICKET written in that code?

  1. RGAICR
  2. UJDLFU
  3. WLFNHW
  4. VKEMGV
Answer

D. VKEMGV Each letter is shifted 2 places forward: TICKET → VKEMGV.

43. If SUN = 54 (adding letter positions A = 1 … Z = 26), what is MAP?

  1. 23
  2. 30
  3. 38
  4. 31
Answer

B. 30 M = 13, A = 1, P = 16; total 30.

44. If PLANET is coded as TENALP, how is SCHOOL coded?

  1. MPPIDT
  2. OOLSCH
  3. TDIPPM
  4. LOOHCS
Answer

D. LOOHCS The word is written in reverse: SCHOOL → LOOHCS.

45. If SCHOOL is written as QAFMMJ in a certain code, how is MOBILE written in that code?

  1. KMZGJC
  2. OQDKNG
  3. LNAHKD
  4. JLYFIB
Answer

A. KMZGJC Each letter is shifted 2 places backward: MOBILE → KMZGJC.

46. If SCHOOL is coded as LOOHCS, how is DOCTOR coded?

  1. TORDOC
  2. EPDUPS
  3. ROTCOD
  4. SPUDPE
Answer

C. ROTCOD The word is written in reverse: DOCTOR → ROTCOD.

47. If PEN = 35 (adding letter positions A = 1 … Z = 26), what is JAM?

  1. 26
  2. 24
  3. 30
  4. 23
Answer

B. 24 J = 10, A = 1, M = 13; total 24.

48. If FRIEND is coded as DNEIRF, how is PENCIL coded?

  1. LICNEP
  2. QFODJM
  3. MJDOFQ
  4. CILPEN
Answer

A. LICNEP The word is written in reverse: PENCIL → LICNEP.

49. If PEN = 35 (adding letter positions A = 1 … Z = 26), what is DOG?

  1. 26
  2. 29
  3. 28
  4. 25
Answer

A. 26 D = 4, O = 15, G = 7; total 26.

50. If ORANGE is written as PSBOHF in a certain code, how is FRIEND written in that code?

  1. GSJFOE
  2. FRIEND
  3. EQHDMC
  4. HTKGPF
Answer

A. GSJFOE Each letter is shifted 1 place forward: FRIEND → GSJFOE.

51. Each letter is shifted forward by 13 places with wraparound. What does W become?

  1. K
  2. M
  3. L
  4. J
Answer

D. J Convert A=0 through Z=25, add the shift and take modulo 26.

52. Each letter is shifted forward by 2 places with wraparound. What does X become?

  1. Z
  2. A
  3. C
  4. B
Answer

A. Z Convert A=0 through Z=25, add the shift and take modulo 26.

53. Each letter is shifted forward by 10 places with wraparound. What does O become?

  1. Z
  2. Y
  3. A
  4. B
Answer

B. Y Convert A=0 through Z=25, add the shift and take modulo 26.

54. Each letter is shifted forward by 9 places with wraparound. What does N become?

  1. W
  2. Y
  3. Z
  4. X
Answer

A. W Convert A=0 through Z=25, add the shift and take modulo 26.

55. Each letter is shifted forward by 10 places with wraparound. What does R become?

  1. D
  2. E
  3. C
  4. B
Answer

D. B Convert A=0 through Z=25, add the shift and take modulo 26.

56. Each letter is shifted forward by 4 places with wraparound. What does N become?

  1. U
  2. R
  3. T
  4. S
Answer

B. R Convert A=0 through Z=25, add the shift and take modulo 26.

57. Each letter is shifted forward by 10 places with wraparound. What does F become?

  1. Q
  2. S
  3. R
  4. P
Answer

D. P Convert A=0 through Z=25, add the shift and take modulo 26.

58. Each letter is shifted forward by 2 places with wraparound. What does C become?

  1. G
  2. E
  3. H
  4. F
Answer

B. E Convert A=0 through Z=25, add the shift and take modulo 26.

59. Each letter is shifted forward by 10 places with wraparound. What does P become?

  1. A
  2. C
  3. B
  4. Z
Answer

D. Z Convert A=0 through Z=25, add the shift and take modulo 26.

60. Each letter is shifted forward by 12 places with wraparound. What does L become?

  1. X
  2. Y
  3. Z
  4. A
Answer

A. X Convert A=0 through Z=25, add the shift and take modulo 26.

61. Each letter is shifted forward by 7 places with wraparound. What does K become?

  1. U
  2. R
  3. T
  4. S
Answer

B. R Convert A=0 through Z=25, add the shift and take modulo 26.

62. Each letter is shifted forward by 13 places with wraparound. What does J become?

  1. Y
  2. W
  3. Z
  4. X
Answer

B. W Convert A=0 through Z=25, add the shift and take modulo 26.

63. In a number code, every number is increased by 8. What is the code for 15?

  1. 13
  2. 18
  3. 23
  4. 48
Answer

C. 23 Apply the stated rule: 15+8=23.

Mock test

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