Discussion of Question with ID = 082 under Sitting-Arrangements

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Question

Eleven students A, B, C, D, E, F, G ,H, I, J and K are sitting in a row of the class facing the teacher.

  1. D, who is to the immediate left of F, is second to the right of C.
  2. A, is second to the right of E, who is at one of the ends.
  3. J is the immediate neighbor of A and B and third to the left of G.
  4. H is to the immediate left of D and third to the right of I.

If E and D, C and B, A and H and K and F interchange their position, which of the following pair of students is sitting at the end?

A

D and E.

B

E and F.

C

D and K.

D

K and F.

Soln.
Ans: c

Original Positions from left to right are: E-K-A-J-B-I-G-C-H-D-F.

After interchange: D-F-H-J-C-I-G-B-A-E-K.

D and K will be sitting at the two ends if the positions as given in the question are interchanged.


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