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Seven people, A, B, C, D, E, F and G are sitting in a straight line, facing north. Only two people sit to the left of D. F sits second to the left of D. G sits second to the right of E. E sits second to the right of D. A sits second to the left of B. A is not an immediate neighbour of F. Who sits at the extreme right end of the line?
C
B
G
A
G
Fix the position of D first (2nd from left in a 7-person line), then place F, E, and G using relative positions, and finally arrange A and B to find who sits at the extreme right.
Fix the position of D first (2nd from left in a 7-person line), then place F, E, and G using relative positions, and finally arrange A and B to find who sits at the extreme right.
Step 1: Position D and F
There are 7 seats in a straight line facing North. 'Only two people sit to the left of D' means D is seated at the 3rd position from the left. 'F sits second to the left of D' places F at the 1st position (extreme left end).
Step 2: Position E and G
'E sits second to the right of D' means E is at the 5th position. 'G sits second to the right of E' means G is at the 7th position (extreme right end).
Step 3: Position A and B, then C