RRB Group D 1 Dec 2025 Shift 2 Solved Paper

Concept:Identify the pattern in positional shifts between the letters of each pair. The odd pair does not follow the common shift pattern.Explanation:Assign positions: $A=1, B=2, …, Z=26$.Check the shift from the first letter to the first letter of the second pair (i.e., left to right across the hyphen).Pair A: RX – WM$R(18) \rightarrow W(23) = +5$$X(24) \rightarrow M(13) = -11$ (or $+15$ cyclic).Pair B: YE – DT$Y(25) \rightarrow D(4) = +5$ (cyclic: $25+5=30 \equiv 4$)$E(5) \rightarrow T(20) = +15$Pair C: KQ – QE$K(11) \rightarrow Q(17) = +6$$Q(17) \rightarrow E(5) = -12$ (or $+14$ cyclic).Pair D: IO – ND$I(9) \rightarrow N(14) = +5$$O(15) \rightarrow D(4) = -11$ (or $+15$ cyclic).Pairs A, B, and D all have a shift of $+5$ in the first letter (considering cyclic wrap). Pair B has $+15$ in the second letter, but the first letter pattern is consistent across A, B, D.Pair C has a $+6$ shift in the first letter, breaking the $+5$ pattern.Therefore, KQ – QE does not belong to the group.Answer:Option C (KQ – QE)