EduGoog

(i). Eleven students, A, B, C, D, E, F, G, H, I, J and K, are sitting in the first row of the class facing the teacher.
(ii). D who is to the immediate left of F is second to the right of C.
(iii). A is the second to the right of E, who is at one of the ends.
(iv). J is the immediate neighbour of A and B and third to the left of G.
(v). H is to the immediate left of D and third to the left of I.

In the above sitting arrangement, which of the following statements is superfluous ?

Option:
A. (i)
B. (ii)
C. (iii)
D. (iv)
E. None is superfluous
Answer: E . None is superfluous

Justification:

D is to the left of F and second to the right of C i.e. C - D F.
A is second to the right of E i.e. E - A.
J is immediate neidhbour of A and B and third to the left of G i.e. A J B - G.
H is the left of D and third to the right of I i.e. I - H D.
The above four orders may be combined to obtain the correct order as under :
E, K, A, J, B, I, G, C, H, D, F

All the statements are needed to determine the correct sequence.

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