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SSC CPO SI/ASI Coding-Decoding Questions with Answers & Explanations

20 Coding-Decoding questions from the General Intelligence & Reasoning section of SSC CPO SI/ASI, 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 DOG = 26 (sum of letter positions), then TOP = ?

  1. A54
  2. B48
  3. C52
  4. D51
Show answer
Answer: (D) 51 Add the alphabet positions of the letters: 20 + 15 + 16 = 51.
Question 2

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

  1. A37
  2. B42
  3. C40
  4. D39
Show answer
Answer: (C) 40 Add the alphabet positions of the letters: 3 + 21 + 16 = 40.
Question 3

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

  1. A39
  2. B40
  3. C44
  4. D38
Show answer
Answer: (B) 40 Add the alphabet positions of the letters: 3 + 21 + 16 = 40.
Question 4

In a certain code language, BREAD is written as DTGCF. How is HOUSE written in that code?

  1. AGUWQJ
  2. BJQWUG
  3. CLSYWI
  4. DFMSQC
Show answer
Answer: (B) JQWUG Each letter is shifted 2 place(s) forward.
Question 5

In a certain code language, GLASS is written as INCUU. How is QUEEN written in that code?

  1. ASWGGP
  2. BOSCCL
  3. CTXHHQ
  4. DPGGWS
Show answer
Answer: (A) SWGGP Each letter is shifted 2 place(s) forward.
Question 6

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

  1. AMJHIU
  2. BLIGHT
  3. CKHFGS
  4. DJGEFR
Show answer
Answer: (C) KHFGS Each letter is shifted 1 place(s) backward.
Question 7

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

  1. ACJZYR
  2. BSZAKD
  3. CVCDNG
  4. DRYZJC
Show answer
Answer: (D) RYZJC Each letter is shifted 2 place(s) backward.
Question 8

If HEN = 27 (sum of letter positions), then CAT = ?

  1. A24
  2. B28
  3. C23
  4. D26
Show answer
Answer: (A) 24 Add the alphabet positions of the letters: 3 + 1 + 20 = 24.
Question 9

In a certain code language, PAPER is written as RCRGT. How is STONE written in that code?

  1. AUVQPG
  2. BQRMLC
  3. CWXSRI
  4. DGPQVU
Show answer
Answer: (A) UVQPG Each letter is shifted 2 place(s) forward.
Question 10

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

  1. A19
  2. B23
  3. C24
  4. D25
Show answer
Answer: (B) 23 Add the alphabet positions of the letters: 2 + 1 + 20 = 23.

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Question 11

In a certain code language, GLASS is written as JODVV. How is HOUSE written in that code?

  1. AELRPB
  2. BNUAYK
  3. CKRXVH
  4. DHVXRK
Show answer
Answer: (C) KRXVH Each letter is shifted 3 place(s) forward.
Question 12

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

  1. A54
  2. B58
  3. C57
  4. D50
Show answer
Answer: (A) 54 Add the alphabet positions of the letters: 19 + 21 + 14 = 54.
Question 13

In a certain code language, LIGHT is written as KHFGS. How is BREAD written in that code?

  1. ABREAD
  2. BCZDQA
  3. CCSFBE
  4. DAQDZC
Show answer
Answer: (D) AQDZC Each letter is shifted 1 place(s) backward.
Question 14

If HEN = 27 (sum of letter positions), then FAN = ?

  1. A25
  2. B21
  3. C24
  4. D18
Show answer
Answer: (B) 21 Add the alphabet positions of the letters: 6 + 1 + 14 = 21.
Question 15

In a certain code language, PAPER is written as OZODQ. How is QUEEN written in that code?

  1. AOSCCL
  2. BMDDTP
  3. CQUEEN
  4. DPTDDM
Show answer
Answer: (D) PTDDM Each letter is shifted 1 place(s) backward.
Question 16

If PEN = 35 (sum of letter positions), then MAP = ?

  1. A28
  2. B30
  3. C26
  4. D31
Show answer
Answer: (B) 30 Add the alphabet positions of the letters: 13 + 1 + 16 = 30.
Question 17

In a certain code language, WATER is written as YCVGT. How is GLASS written in that code?

  1. AEJYQQ
  2. BJODVV
  3. CUUCNI
  4. DINCUU
Show answer
Answer: (D) INCUU Each letter is shifted 2 place(s) forward.
Question 18

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

  1. A22
  2. B30
  3. C26
  4. D27
Show answer
Answer: (C) 26 Add the alphabet positions of the letters: 4 + 15 + 7 = 26.
Question 19

In a certain code language, HOUSE is written as FMSQC. How is FRUIT written in that code?

  1. ADPSGR
  2. BEQTHS
  3. CRGSPD
  4. DHTWKV
Show answer
Answer: (A) DPSGR Each letter is shifted 2 place(s) backward.
Question 20

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

  1. A45
  2. B44
  3. C41
  4. D40
Show answer
Answer: (C) 41 Add the alphabet positions of the letters: 3 + 15 + 23 = 41.

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

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