In this type of questions, some clues regarding seating or placing sequence (linear or circular) of some persons or items is given. The candidate is required to form the proper sequence using these clues and answer the questions accordingly.

(i). A, B, C, D, E, F and G are sitting on a wall and all of them are facing east.
(ii). C is on the immediate right of D.
(iii). B is at an extreme end and has E as his neighbour.
(iv). G is between E and F.
(v). D is sitting third from the south end.

Which of the conditions (i) to (v) given above is not required to find out the place in which A is sitting ?

A. (i)
B. (ii)
C. (iii)
D. All are required
E. None of these
Answer: D . All are required


C is to the right of D.
D is third from south. So, B will be at the extreme end from north because it should have E as its neighbour. G is between E and F.
So the Sequence is :
B →
E →
G →
F →  East
D →
C →
A →

All the statements are required to determine the correct sequence.