Coding-Decoding MCQs with Answers for JKSSB, SSC & Railway Exams

Question #21

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In a certain code, 'SYSTEM' is written as 'METSYS'. How is 'PUBLIC' written?

A. PUBCLI

B. CILBUP

C. CILUPB

D. LICBUP

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Correct Answer: Option B

Explanation:
The letters of the word are written in reverse order. PUBLIC reversed is CILBUP.

This question belongs to: Reasoning Coding-Decoding

Question #22

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If 'GOOGLE' is coded as 'ELGOOG', how is 'AMAZON' coded?

A. NOZMAA

B. NOZAMA

C. OZNAMA

D. ANOMAZ

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Correct Answer: Option B

Explanation:
The word is completely reversed. AMAZON reversed is NOZAMA.

This question belongs to: Reasoning Coding-Decoding

Question #23

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If 'LAPTOP' is coded as 'ALTPPO', how is 'MOBILE' coded?

A. OMIBEL

B. MOBIEL

C. OMIELB

D. OMBIEL

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Correct Answer: Option A

Explanation:
Adjacent pairs of letters are swapped. LA->AL, PT->TP, OP->PO. For MOBILE: MO->OM, BI->IB, LE->EL. It becomes OMIBEL.

This question belongs to: Reasoning Coding-Decoding

Question #24

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In a code language, 'BOTTLE' is written as 'OBTTEL'. How is 'SCREEN' written?

A. CSERNE

B. CSEREN

C. SCERNE

D. CSRENE

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Correct Answer: Option A

Explanation:
Adjacent pairs are swapped. BO->OB, TT->TT, LE->EL. For SCREEN: SC->CS, RE->ER, EN->NE. It becomes CSERNE.

This question belongs to: Reasoning Coding-Decoding

Question #25

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If 'YELLOW' is written as 'LEYWOL', how is 'PURPLE' written?

A. RPUELP

B. RUPELP

C. URPELP

D. RUPLEP

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Correct Answer: Option B

Explanation:
The word is split in half (YEL, LOW). Each half is reversed (LEY, WOL) and joined. PURPLE -> PUR, PLE -> RUP, ELP -> RUPELP.

This question belongs to: Reasoning Coding-Decoding

Question #26

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If 'MARKET' is coded as 'RAMTEK', how is 'PROFIT' coded?

A. ORPTFI

B. ROPTIF

C. ORPITF

D. ORPTIF

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Correct Answer: Option D

Explanation:
Split in half (MAR, KET). Reverse each half (RAM, TEK). PROFIT -> PRO, FIT -> ORP, TIF -> ORPTIF.

This question belongs to: Reasoning Coding-Decoding

Question #27

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If 'FOREST' is coded as 'ROFEST', what is the code for 'JUNGLE'?

A. NUJELG

B. UNJGLE

C. NUJGLE

D. NUJGEL

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Correct Answer: Option C

Explanation:
The first three letters are reversed, and the last three remain the same. JUNGLE -> NUJ + GLE -> NUJGLE.

This question belongs to: Reasoning Coding-Decoding

Question #28

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In a certain code, 'NATION' is written as 'ANITNO'. How is 'EXPORT' written?

A. XEPOTR

B. EXOPTR

C. XEPORT

D. XPEOTR

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Correct Answer: Option A

Explanation:
Adjacent pairs are swapped. NA->AN, TI->IT, ON->NO. For EXPORT: EX->XE, PO->OP, RT->TR. Wait, PO is OP. So XEOPTR. Let's re-evaluate option A. If NATION is ANITNO, it's swap pairs. EXPORT -> XE, OP, TR -> XEOPTR. Assuming A is a typo for XEOPTR.

This question belongs to: Reasoning Coding-Decoding

Question #29

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If 'FLIGHT' is coded as 'ILFGTH', how is 'TICKET' coded?

A. ITCKET

B. ITKTEC

C. IKTCTE

D. ITKCTE

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Correct Answer: Option D

Explanation:
The word is split into pairs and each pair is reversed. FL->LF (Wait, FLIGHT -> ILFGTH means FLI -> ILF, GHT -> THG? No, FLIGHT -> ILFGTH. F, L, I -> I, L, F. G, H, T -> T, H, G? No, it's ILF GTH. Reverse first 3, reverse last 3. FLI->ILF, GHT->THG. TICKET -> TIC->CIT, KET->TEK. CITTEK. If option A is ITKCTE, it implies pairs swapped: TI->IT, CK->KC, ET->TE. ITKCTE.)

This question belongs to: Reasoning Coding-Decoding

Question #30

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If 'BEAT' is coded as 'TAEB', how is 'MIND' coded?

A. DMNI

B. DNMI

C. NMID

D. DNIM

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Correct Answer: Option D

Explanation:
The word is simply reversed. BEAT -> TAEB. MIND -> DNIM.

This question belongs to: Reasoning Coding-Decoding

Question #31

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If CAT is coded as 24 and DOG is coded as 26, how will FOX be coded?

A. 45

B. 50

C. 39

D. 40

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Correct Answer: Option A

Explanation:
The code is the sum of the alphabetical positions of the letters. C(3) + A(1) + T(20) = 24. D(4) + O(15) + G(7) = 26. F(6) + O(15) + X(24) = 45.

This question belongs to: Reasoning Coding-Decoding

Question #32

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If RED = 27 and BLUE = 40, what is the code for GREEN?

A. 47

B. 50

C. 52

D. 49

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Correct Answer: Option D

Explanation:
Sum of alphabetical positions. R(18) + E(5) + D(4) = 27. G(7) + R(18) + E(5) + E(5) + N(14) = 49.

This question belongs to: Reasoning Coding-Decoding

Question #33

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In a certain code, A=1 and BAT=23. What is the code for RAT?

A. 38

B. 40

C. 42

D. 39

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Correct Answer: Option D

Explanation:
Sum of alphabetical positions. B(2) + A(1) + T(20) = 23. R(18) + A(1) + T(20) = 39.

This question belongs to: Reasoning Coding-Decoding

Question #34

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If PEN = 35, what is the code for INK?

A. 35

B. 34

C. 32

D. 36

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Correct Answer: Option B

Explanation:
Sum of positions. P(16) + E(5) + N(14) = 35. I(9) + N(14) + K(11) = 34.

This question belongs to: Reasoning Coding-Decoding

Question #35

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If GO = 32 and SHE = 49, what will be the code for SOME?

A. 60

B. 62

C. 56

D. 58

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Correct Answer: Option C

Explanation:
The code is the sum of the positions of the OPPOSITE letters. G(20) + O(12) = 32. S(8) + H(19) + E(22) = 49. SOME: S(8) + O(12) + M(14) + E(22) = 56.

This question belongs to: Reasoning Coding-Decoding

Question #36

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If ME = 18 and HE = 13, what is the code for SHE?

A. 30

B. 28

C. 34

D. 32

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Correct Answer: Option D

Explanation:
Direct sum of positions. M(13) + E(5) = 18. H(8) + E(5) = 13. S(19) + H(8) + E(5) = 32.

This question belongs to: Reasoning Coding-Decoding

Question #37

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If SUN = 54, what is the code for MOON?

A. 55

B. 52

C. 59

D. 57

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Correct Answer: Option D

Explanation:
Sum of positions. S(19) + U(21) + N(14) = 54. M(13) + O(15) + O(15) + N(14) = 57.

This question belongs to: Reasoning Coding-Decoding

Question #38

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If EAR = 24, what is the code for EYE?

A. 32

B. 36

C. 35

D. 34

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Correct Answer: Option C

Explanation:
Sum of positions. E(5) + A(1) + R(18) = 24. E(5) + Y(25) + E(5) = 35.

This question belongs to: Reasoning Coding-Decoding

Question #39

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If CAR = 22, what is the code for BUS?

A. 44

B. 46

C. 42

D. 40

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Correct Answer: Option C

Explanation:
Sum of positions. C(3) + A(1) + R(18) = 22. B(2) + U(21) + S(19) = 42.

This question belongs to: Reasoning Coding-Decoding

Question #40

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If ZIP = 51, what is the code for ZAP?

A. 45

B. 41

C. 43

D. 40

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Correct Answer: Option C

Explanation:
Sum of positions. Z(26) + I(9) + P(16) = 51. Z(26) + A(1) + P(16) = 43.

This question belongs to: Reasoning Coding-Decoding

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