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SSC & BANK EXAMS: REASONING · CODING-DECODING

Coding-decoding (letter shift)

Compare each letter of the word with its code using alphabet positions (A=1 … Z=26); find the shift, then apply it to the new word.

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Worked examples

Example 1 · level 1

In a certain code language, BANK is written as EDQN. How is MYSORE written in that code?

  1. PBVRUH
  2. JVPLOB
  3. HURVBP
  4. QCWSVI
Show solution
  1. BANK: B→E (+3), A→D (+3), N→Q (+3), K→N (+3).
  2. Rule: each letter moves +3.
  3. MYSORE: M→P, Y→B, S→V, O→R, R→U, E→H → PBVRUH.

Answer: PBVRUH

Example 2 · level 2

In a certain code language, DIWALI is written as ZESWHE. How is LOTUS written in that code?

  1. OQPKH
  2. HKPQO
  3. PSXYW
  4. ILQRP
Show solution
  1. DIWALI: D→Z (−4), I→E (−4), W→S (−4), A→W (−4), L→H (−4), I→E (−4).
  2. Rule: each letter moves −4.
  3. LOTUS: L→H, O→K, T→P, U→Q, S→O → HKPQO.

Answer: HKPQO

Example 3 · level 3

In a certain code language, EXAM is written as FZDQ. How is PUNE written in that code?

  1. QWQI
  2. RXRJ
  3. OSKA
  4. IQWQ
Show solution
  1. EXAM: E→F (+1), X→Z (+2), A→D (+3), M→Q (+4).
  2. Rule: the 1st letter moves +1, the 2nd +2, the 3rd +3, and so on.
  3. PUNE: P→Q, U→W, N→Q, E→I → QWQI.

Answer: QWQI

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