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This bilingual Coding-Decoding question tests the exact transformation used in “If BAT is coded as CBU, then RAT will be coded as?”. It requires the learner to align letter positions, identify a uniform +1 alphabet shift, apply the rule consistently and verify SBU against every position.
The verified answer to “If BAT is coded as CBU, then RAT will be coded as?” is SBU, option B. Applying the verified rule to the target expression produces SBU. The alternatives SBT, RBU and SCU fail because at least one position does not obey the same transformation. A useful final check is to map SBU backward through the inverse operation and confirm that the original target is recovered. Also compare length and character positions: unless the demonstrated rule inserts or removes symbols, the coded result should preserve the required length.
FAQ
Common questions and clear answers for this topic.
SBU, option B.
The question uses a uniform +1 alphabet shift.
SBT, RBU, SCU violate the verified transformation at one or more positions.
Apply the inverse transformation to the selected code and verify the original target.
Coding Decoding is a type of Logical Reasoning question where words or letters are coded in a specific pattern and you need to decode them. For example if CAT is coded as FDW then each letter is shifted by 3 positions. It is one of the most important topics in SSC CGL, Bank PO, IBPS, and Railway competitive exams.
Types of Coding Decoding questions: Letter Coding (letters replaced by other letters), Number Coding (words coded as numbers), Symbol Coding (letters replaced by symbols), Mixed Coding (combination of numbers and letters), and Coding by Analogy. All these types are asked in SSC CGL, RRB NTPC, and Bank exams.
