Nine persons A, B, C, D, E, F, G, H and J are sitting in a row and all of them are facing north but not necessarily in the same order. H sits to the left of C. Less than four persons sit to the right of G. B and A are immediate neighbours of J. The number of persons to the left of E is one less than the number of persons to the right of F. Only two persons sit between B and H, who is an immediate neighbour of G. D sits third from the right end and F does not sit at any extreme end. Question: Who sits at the extreme end points?

D and C
F and C
G and B
E and C

Correct answer: E and C

Solution

Using D as third from the right end fixes D at position 7. The condition on E and F gives a positional relation that helps place them centrally, while H, B, and G are constrained by adjacency and spacing. After satisfying all clues, E and C occupy the two extreme ends.

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