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Question

In a certain coded language 'PRAM' is coded as 'KLVG' and 'DENY' is coded as 'YYIS'. How will 'HATS' be coded in the same code language?

This question was previously asked in
SSC CHSL 2025 Tier 1 Question Paper (21-Nov-2025) (Shift 1)
The correct answer is

CUOM

This is a letter-shift coding problem: each letter of the word is moved by a fixed number of places in the alphabet to get its code, and you must find that shift for each position and then apply it to a new word. Use A = 1, B = 2, …, Z = 26, wrapping around the alphabet cyclically.

Take PRAM → KLVG. P(16) → K(11) is a shift of −5, and R(18) → L(12) is a shift of −6.

Continuing, A(1) → V(22) works as a −5 shift read cyclically (1 − 5 = −4, which wraps to 22 = V), and M(13) → G(7) is a −6 shift.

So the rule is: letters in positions 1 and 3 shift by −5, while letters in positions 2 and 4 shift by −6; the word DENY → YYIS follows the same pattern, confirming it.

Now apply this to HATS: H(8) − 5 = C(3); A(1) − 6 wraps to U(21); T(20) − 5 = O(15); S(19) − 6 = M(13).

Reading the four coded letters in order gives C, U, O, M.

The concept is a position-dependent alphabetic shift applied cyclically, so subtractions that fall below 1 wrap around from Z. Hence 'HATS' is coded as CUOM.

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