Six persons R, S, T, U, V and W are sitting in a row facing north. Who among the following sits at the extreme left end?
Statement
I. W sits to the immediate left of R, who sits third to the right of S. U sits to the immediate left of V, who is not adjacent to S.
Statement
II. T sits third to the left of U, who sits adjacent to
V. S sits second to the left of W. R does not sit at any end.

Now, from statement I, Now, W sits to the immediate left of R, who sits third to the right of S. U sits to the immediate left of V, who is not adjacent to S. So, the possible arrangement is

S T W R U V


So, S sits at the extreme left end.

Therefore, statement I alone is sufficient.

Now, from statement II, Now, T sits third to the left of U, who sits adjacent to V. S sits second to the left of W. R does not sit at any end.
So, we have

S T W R U V

So, S sits at the extreme left end.


Therefore, statement II alone is sufficient.