Six friends A, B, C, D, E and F are sitting on a bench facing north. A is sitting second to the right of C, who is an immediate neighbour of D. E is sitting to the immediate left of A. F is an immediate neighbour of both just D and B. If B is sitting at one extreme end of the bench, then who among the following is sitting at the other extreme end?

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Six friends A, B, C, D, E and F are sitting on a bench facing north. A is sitting second to the right of C, who is an immediate neighbour of D. E is sitting to the immediate left of A. F is an immediate neighbour of both just D and B. If B is sitting at one extreme end of the bench, then who among the following is sitting at the other extreme end?

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RRB NTPC CBT 2 (Level-2) Official Paper (Held On: 16 June 2022 Shift 2)

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C
E
D
A

Answer 1

Given: Six friends A, B, C, D, E and F are sitting on a bench facing north.

(1): B is sitting at one extreme end of the bench. So, there have two possibilities

Case(I):

Case (II):

(2): F is an immediate neighbour of both just D and B.

Case(I):

Case (II):

(3): A is sitting second to the right of C, who is an immediate neighbour of D. i.e. A is sitting second to the right of C and C is an immediate neighbour of D.

So, Case (II) is eliminated.

Case (I):

Then, the final arrangement is:

Therefore, A is sitting at the other extreme end.

Hence, the correct answer is A.

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