RRB Group D 1 Dec 2025 Shift 2 Solved Paper

Concept:The pattern uses two sequential moves: first, swap the second and fourth letters; then, rotate the letters left by one position.Explanation:Take the first example: $JOBS$.Step 1: keep first letter $J$, swap $O$ (2nd) and $S$ (4th) → $JSBO$.Step 2: left‑rotate the whole string: move $J$ to the end → $SBOJ$.This matches $JOBS \to JSBO \to SBOJ$.Second example: $OILY$.Step 1: keep first letter $O$, swap $I$ (2nd) and $Y$ (4th) → $OYLI$.Step 2: left‑rotate: $O$ moves to end → $YLIO$.This matches $OILY \to OYLI \to YLIO$.Now check each option with the same two steps.Option 1: $KIDS$. Step 1: keep $K$, swap $I$ and $S$ → $KDIS$. (Correct so far.)Step 2: left‑rotate $KDIS$ → $DISK$. But the given third term is $SDIK$, not $DISK$. So it fails.Option 2: $IDEA$. Step 1: keep $I$, swap $D$ and $A$ → $IDAE$. (Correct.)Step 2: left‑rotate $IDAE$ → $DAEI$. Given third term is $DEAI$, not $DAEI$. Fails.Option 3: $EARN$. Step 1: keep $E$, swap $A$ and $R$ → $ENRA$. (Correct.)Step 2: left‑rotate $ENRA$ → $NRAE$. The given third term is exactly $NRAE$. So it matches.Option 4: $GAVE$. Step 1: should keep $G$, swap $A$ and $E$ → $GEVA$. But the given second term is $AGVE$, which changes the first letter. Therefore it fails.Thus only $EARN \to ENRA \to NRAE$ follows the same logic.Answer:Option 3 ($EARN – ENRA – NRAE$).