Six persons F, G, H, I, J and K are sitting in a row facing north. Who among the following sits at the extreme left end? Statement
I. K sits to the immediate left of F, who sits third to the right of G. I sits to the immediate left of J, who is not adjacent to G. Statement
II. H sits third to the left of I, who sits adjacent to J. G sits second to the left of K. F does not sit at any end.

Now, from statement I, Now, K sits to the immediate left of F, who sits third to the right of G. I sits to the immediate left of J, who is not adjacent to G. So, the possible arrangement is G         H         K         F          I           J   So, G sits at the extreme left end. Therefore, statement I alone is sufficient. Now, from statement II, Now, H sits third to the left of I, who sits adjacent to J. G sits second to the left of K. F does not sit at any end. So, we have G         H         K         F          I           J So, G sits at the extreme left end. Therefore, statement II alone is sufficient.