Question 1
Seven people A, B, C, D, E, F, G stand in a row facing North. i) A is two places to the left of C. ii) D is two places to the right of C. iii) B stands somewhere between A and D. iv) E is not at the extreme left and F is not at the extreme right. Who stands at the extreme left?
From clues i and ii, positions are: X _ Z _ Y (positions 1,3,5 or 2,4,6 or 3,5,7). Clue iii places W between X and Y. Clue iv eliminates positions 3,5,7 for left end. Therefore, X must be at position 1 (extreme left).