RRB Group D 1 Dec 2025 Shift 1 Solved Paper

Concept:The pattern involves two sequential transformations on a four-letter word: first swap the first two letters, then move the last letter to the front.Explanation:Apply the logic to the given pair BLUE – LBUE – ELBU.Step 1: BLUE $\rightarrow$ LBUE (positions 1 and 2 interchange: $1\,2\,3\,4 \to 2\,1\,3\,4$).Step 2: LBUE $\rightarrow$ ELBU (last letter moves to first: $2\,1\,3\,4 \to 4\,2\,1\,3$).The same pattern works for TWIN – WTIN – NWTI.Now test the options:Option A: URGE $\rightarrow$ RUGE (swap 1&2 ✔) $\rightarrow$ RGEU (should be $4\,2\,1\,3$ but $1\,3\,4\,2$ ✘).Option B: POST $\rightarrow$ PSOT (swaps positions 2&3 instead of 1&2 ✘).Option C: FOUR $\rightarrow$ OFUR (swap 1&2 ✔) $\rightarrow$ ROFU (last letter to first: $4\,2\,1\,3$ ✔).Option D: READ $\rightarrow$ ERAD (swap 1&2 ✔) $\rightarrow$ DEAR (last letter should go to first, but DEAR is $4\,2\,3\,1$ ✘).Only option C follows the exact sequence.Answer:C. FOUR – OFUR – ROFU