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RRB JE Coding-Decoding Questions with Answers & Explanations

20 Coding-Decoding questions from the General Intelligence & Reasoning section of RRB JE, each with the correct answer and a worked explanation. Try each question first, then tap Show answer to check. When you're ready, take the timed chapter-wise test to see your all-India rank.

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Question 1

If MAP = 30 (sum of letter positions), then TOP = ?

  1. A47
  2. B54
  3. C53
  4. D51
Show answer
Answer: (D) 51 Add the alphabet positions of the letters: 20 + 15 + 16 = 51.
Question 2

If FAN = 21 (sum of letter positions), then CAT = ?

  1. A24
  2. B22
  3. C21
  4. D28
Show answer
Answer: (A) 24 Add the alphabet positions of the letters: 3 + 1 + 20 = 24.
Question 3

In a certain code language, RIVER is written as QHUDQ. How is HOUSE written in that code?

  1. AGNTRD
  2. BHOUSE
  3. CFMSQC
  4. DIPVTF
Show answer
Answer: (A) GNTRD Each letter is shifted 1 place(s) backward.
Question 4

In a certain code language, SMILE is written as TNJMF. How is LIGHT written in that code?

  1. ANKIJV
  2. BKHFGS
  3. CUIHJM
  4. DMJHIU
Show answer
Answer: (D) MJHIU Each letter is shifted 1 place(s) forward.
Question 5

If DOG = 26 (sum of letter positions), then SUN = ?

  1. A53
  2. B54
  3. C58
  4. D52
Show answer
Answer: (B) 54 Add the alphabet positions of the letters: 19 + 21 + 14 = 54.
Question 6

In a certain code language, LIGHT is written as OLJKW. How is FRUIT written in that code?

  1. AWLXUI
  2. BJVYMX
  3. CIUXLW
  4. DCORFQ
Show answer
Answer: (C) IUXLW Each letter is shifted 3 place(s) forward.
Question 7

If CUP = 40 (sum of letter positions), then CAT = ?

  1. A24
  2. B23
  3. C22
  4. D28
Show answer
Answer: (A) 24 Add the alphabet positions of the letters: 3 + 1 + 20 = 24.
Question 8

In a certain code language, PAPER is written as QBQFS. How is HOUSE written in that code?

  1. AFTVPI
  2. BIPVTF
  3. CJQWUG
  4. DGNTRD
Show answer
Answer: (B) IPVTF Each letter is shifted 1 place(s) forward.
Question 9

If BUS = 42 (sum of letter positions), then COW = ?

  1. A39
  2. B40
  3. C38
  4. D41
Show answer
Answer: (D) 41 Add the alphabet positions of the letters: 3 + 15 + 23 = 41.
Question 10

In a certain code language, LIGHT is written as JGEFR. How is PAPER written in that code?

  1. ANYNCP
  2. BLWLAN
  3. CPCNYN
  4. DRCRGT
Show answer
Answer: (A) NYNCP Each letter is shifted 2 place(s) backward.

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Question 11

If FAN = 21 (sum of letter positions), then SUN = ?

  1. A52
  2. B55
  3. C56
  4. D54
Show answer
Answer: (D) 54 Add the alphabet positions of the letters: 19 + 21 + 14 = 54.
Question 12

In a certain code language, PLANT is written as NJYLR. How is QUEEN written in that code?

  1. ALCCSO
  2. BOSCCL
  3. CMQAAJ
  4. DPTDDM
Show answer
Answer: (B) OSCCL Each letter is shifted 2 place(s) backward.
Question 13

If MAP = 30 (sum of letter positions), then TOP = ?

  1. A55
  2. B48
  3. C51
  4. D52
Show answer
Answer: (C) 51 Add the alphabet positions of the letters: 20 + 15 + 16 = 51.
Question 14

In a certain code language, CLOUD is written as FORXG. How is HOUSE written in that code?

  1. AKRXVH
  2. BELRPB
  3. CLSYWI
  4. DHVXRK
Show answer
Answer: (A) KRXVH Each letter is shifted 3 place(s) forward.
Question 15

If CAT = 24 (sum of letter positions), then SUN = ?

  1. A53
  2. B52
  3. C56
  4. D54
Show answer
Answer: (D) 54 Add the alphabet positions of the letters: 19 + 21 + 14 = 54.
Question 16

In a certain code language, BRICK is written as ZPGAI. How is QUEEN written in that code?

  1. ALCCSO
  2. BPTDDM
  3. COSCCL
  4. DMQAAJ
Show answer
Answer: (C) OSCCL Each letter is shifted 2 place(s) backward.
Question 17

If SUN = 54 (sum of letter positions), then BOX = ?

  1. A39
  2. B40
  3. C42
  4. D41
Show answer
Answer: (D) 41 Add the alphabet positions of the letters: 2 + 15 + 24 = 41.
Question 18

In a certain code language, TIGER is written as VKIGT. How is RIVER written in that code?

  1. ATKXGT
  2. BULYHU
  3. CVMZIV
  4. DTGXKT
Show answer
Answer: (A) TKXGT Each letter is shifted 2 place(s) forward.
Question 19

If MAP = 30 (sum of letter positions), then DOG = ?

  1. A28
  2. B26
  3. C27
  4. D29
Show answer
Answer: (B) 26 Add the alphabet positions of the letters: 4 + 15 + 7 = 26.
Question 20

In a certain code language, MANGO is written as OCPIQ. How is STONE written in that code?

  1. AVWRQH
  2. BWXSRI
  3. CQRMLC
  4. DUVQPG
Show answer
Answer: (D) UVQPG Each letter is shifted 2 place(s) forward.

These are RankerClub practice questions written in the RRB JE pattern. They are not official SSC/IBPS/RRB papers.

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