Coding-Decoding

JKSSB Assistant Training Officer (Handicrafts & Handlooms) · Reasoning · 81 practice questions with answers and explanations: 48 Easy, 33 Medium, 0 Hard.

Sample questions

Sample Easy question 1

If GRAPE is coded as JUDSH in a certain code, how is LAMP coded in the same code?

  1. PEQT
  2. ODPS
  3. NCOR
  4. IXJM
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Answer: B. The shift is 3: GRAPE → JUDSH, so LAMP → ODPS.

Sample Easy question 2

In a certain code, each letter is replaced by the letter 4 places ahead of it in the alphabet. How is GRAPE written in that code?

  1. KVETI
  2. LWFUJ
  3. JUDSH
  4. CNWLA
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Answer: A. Move each letter 4 step(s) forward: G R A P E → K V E T I.

Sample Easy question 3

In a certain code, each letter is replaced by the letter 2 places ahead of it. If a word is coded as VTCKP, what was the original word?

  1. TRAIN
  2. XVEMR
  3. SQZHM
  4. USBJO
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Answer: A. Move each letter 2 step(s) back: VTCKP → TRAIN.

Sample Medium question 4

In a code, ROSE is written as URVH (each letter shifted forward by 3). How is LOTUS coded?

  1. ORWYW
  2. OQWXV
  3. ORWXV
  4. PRWXV
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Answer: C. Shifting each letter of LOTUS forward by 3 gives O,R,W,X,V = ORWXV.

Sample Medium question 5

If FRIEND is coded as EQHDMC (each letter shifted back by 1), how is MOTHER coded?

  1. LNRGDQ
  2. LMSGDQ
  3. LNSGDQ
  4. LNSGDR
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Answer: C. Shifting each letter of MOTHER back by 1 gives L,N,S,G,D,Q = LNSGDQ.

Sample Medium question 6

If RIVER is coded as SJWFS (each letter shifted forward by 1), how is OCEAN coded?

  1. PDFBO
  2. PDFCO
  3. PDEBO
  4. PDFBP
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Answer: A. Shifting each letter of OCEAN forward by 1 gives P,D,F,B,O = PDFBO.

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