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D, E, F, G, L, M and N are sitting around a circular table facing the centre. N sits third to the left of M. L sits second to the left of G. M is an immediate neighbour of both E and L. D is not an immediate neighbour of N. How many people sit between F and L when counted from the right of F?
One
Two
Three
Four
Two
Fix the reference point (e.g., M), then place neighbors and use clues to anchor others in a circle to verify the gap between F and L.
Fix the reference point (e.g., M), then place neighbors and use clues to anchor others in a circle to verify the gap between F and L.
Establish Reference
Place M at the top. Since N sits third to the left of M, N is at the 5th position clockwise (left in inward facing circle).
Place Neighbours
M is neighbor to E and L. L sits second to the left of G. Testing placements: M (1), E (2), L (3), G (4), D (5), F (6), N (7). This fits all conditions: D is not a neighbor of N.
Final Verification
In the circle (clockwise: M, E, L, G, D, F, N), count clockwise from F to the right. To the right of F is N, then M, then E, then L. Counting people between F and L from the right side of F involves G and D.
A: Incorrect, C: Incorrect, D: Incorrect. Based on the valid seating arrangement, there are two people (G and D) between F and L when counted from the right of F.
B is correct because the arrangement places G and D between F and L when counted from the right.
In circular arrangement problems, always draw the circle and place the most constrained person first to fix the remaining positions quickly.