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Question

In a certain language, COMPUTER is coded as OCPMTURE. How is KEYBOARD coded in that code?

This question was previously asked in
SSC CGL 2025 Tier 1 Question Paper (25-Sep-2025) (Shift 3)
The correct answer is

EKBYAODR

Here the coding rule rearranges letters in fixed groups rather than shifting them, so first split the source word into equal blocks.

Write COMPUTER in consecutive pairs: CO, MP, UT, ER.

Now split its code OCPMTURE into the matching pairs: OC, PM, TU, RE.

Compare each pair — CO→OC, MP→PM, UT→TU, ER→RE — and note that the two letters inside every pair simply swap places.

Apply the same swap rule to KEYBOARD, taken in pairs: KE, YB, OA, RD.

Swapping within each pair gives EK, BY, AO, DR, which join to form the coded word.

KEYBOARD is therefore coded as EKBYAODR.

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