Problem Statement
Six people A, B, C, D, E, F sit in a row facing north. B sits second from the left end. F is at the extreme right. A sits to the immediate right of B. Only one person sits between A and D. C sits to the immediate left of F. Who is at the extreme left?
Explanation
Place B second from the left: _ B _ _ _ _. A is immediately right of B ⇒ positions become _ B A _ _ _. F is at extreme right ⇒ _ B A _ _ F; C is immediately left of F ⇒ _ B A _ C F. Only one person between A and D, so D must be two places away from A. The only free slots are positions 1 and 4; A is at 3, so D at 5 or 1? Slot 5 is already C; so D must be at 1 or 4 with a gap of one from A (pos 3). The valid is D at 1 or 5? Recheck: ‘only one person between A (3) and D’ means D at 1 or 5. 5 is C, so D at 1. Remaining person E takes slot 4. Hence extreme left is D? Wait, we set D at 1 and E at 4; but we must satisfy ‘Who is at the extreme left?’ That’s D. However, we used C at 5, F at 6. We earlier put E incorrectly. Correct final order: D B A E C F. Extreme left is D. But the options include D, so answer is D. (Note: If you replay the constraints in order, every condition is satisfied.)
Code Solution
SolutionRead Only
Row (left→right): D B A E C F
Practice Sets
This question appears in the following practice sets:
