Five persons A, B, C, D and E are sitting in a row facing north. Who among the following sits at the extreme right end?
I. E sits second to the left of
C. B does not sit adjacent to C, who doesn’t sit at any end. D sits to the right of A but not adjacent to
B.
II. A sits exactly between B and
D. E sits third to the left of
D. C does not sit at any end.

Now, from statement I, E sits second to the left of C. B does not sit adjacent to C, who doesn’t sit at any end. D sits to the right of A but not adjacent to B. So, the possible arrangements is, B         E         A         C         D So, statement I alone is sufficient. Now, from statement II, A sits exactly between B and D. E sits third to the left of D. C does not sit at any end. So, the possible arrangement is, B         E         A         C         D So, statement II alone is sufficient. Therefore, D sits at the extreme right end.