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Question

There are six persons, i.e. A, B, C, D, E and F sitting on a round table facing center, not necessarily in same order. D is not a neighbour of A or B. A is second to the left of B. B is a neighbour of E and F. Who is the second to the right of D?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
A

Circular Seating Arrangement Analysis

We need to determine the seating arrangement based on the given clues and find who is second to the right of D.

Step 1: Placing B and A

Let's denote the six positions around the round table as 1, 2, 3, 4, 5, 6 clockwise.

  • 'A is second to the left of B.' If we place B at position 1, facing the center, the person to the immediate left is at position 6, and the second person to the left is at position 5.
  • Therefore, if B is at seat 1, A is at seat 5.

Step 2: Placing E and F

  • 'B is a neighbour of E and F.' The neighbours of B (at seat 1) are the seats at positions 2 and 6.
  • So, E and F must occupy seats 2 and 6 (in any order).

Step 3: Placing D

  • 'D is not a neighbour of A or B.'
  • A is at seat 5. Neighbours of A are seats 4 and 6.
  • B is at seat 1. Neighbours of B are seats 2 and 6.
  • D cannot be in seats 2, 4, or 6.
  • The occupied seats are 1 (B) and 5 (A). Seats 2 and 6 are taken by E and F.
  • The remaining available seats are 3 and 4.
  • Since D cannot be a neighbour of A (seat 5), D cannot be in seat 4.
  • Therefore, D must be in seat 3.

Step 4: Placing C and Final Arrangement

  • The only remaining person is C, and the only remaining seat is 4.
  • The arrangement (clockwise) could be B, E/F, D, C, A, F/E. Let's verify with B, E, D, C, A, F:
    • B(1), E(2), D(3), C(4), A(5), F(6)
    • D(3) neighbours are E(2) and C(4). D is not neighbour of A(5) or B(1). (Constraint met)
    • A(5) is second left of B(1). (Constraint met)
    • B(1) neighbours are E(2) and F(6). (Constraint met)
  • The arrangement is consistent with all conditions.

Step 5: Finding the Person Second to the Right of D

  • D is at seat 3.
  • The person to the immediate right (clockwise) of D is at seat 4, which is C.
  • The person second to the right of D is at seat 5, which is A.

Therefore, A is the second to the right of D.

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Similar Questions

  1. Read the given instructions carefully and answer the question that follows. 

    8 people – A, B, C, D, E, F, G, H - are sitting at a round table facing each other. A is between E and G, whereas G is sitting second to the right of F. H is between D and B and is second to the left of F. A and B are sitting opposite each other. Who is sitting between E and H?

  2. There are eight persons, i.e. A, B, C, D, E, F, G and H are sitting around a rectangular table. Four of the eight are sitting on four corners of the table facing opposite to the center while those who are sitting on the sides are facing the center. B is sitting at one of the corners. There are two people between A and B. G is sitting on one of the smaller sides with E as his left neighbour. D is sitting second to the right of A. C and F are neighbours of A. There are two persons between H and C to the right of H. Who is sitting at the second place to the right of B?
  3. In a row of 35 people facing the north, Geeta is 15th from the right end. If Nalini sits 14th to the left of Geeta, what is Nalini's position from the left end of the row?

  4. Seven people, A, B, C, D, E, F and G, are sitting in a row, facing north. F sits third to the left of A and F sits third to the right of D. E sits third to the left of B and B sits to the immediate left of G. How many people sit between G and E?

  5. Seven people, J, K, C, D, E, Q and H, are sitting in a row, facing north.

    Only four people sit to the right of Q. Only two people sit to the right of E. K is the immediate neighbour of J and E. H sits third to the right of D.

    How many people sit between C and K?

  6. Seven people F, G, H, L, M, O and Q are sitting in a row facing north. Only five people sit between G and O. H sits to the immediate left of O. Only one person sits between H and F. Q sits immediately to the left of L. How many people sit between L and O?

  7. Seven people H, I, J, K, W, Y and Z are sitting in a row facing north. No one sits to the left of H. Only four people sit between H and I. Only three people sit to the right of W. Z sits to the immediate left of J. Y is not an immediate neighbor of W. How many people sit between Y and W?

  8. Seven people, S, T, I, C, K, E and R, are sitting in a row, facing north. Only two people sit to the right of E. Only two people sit between E and C. Only two people sit between T and S. S sits to the immediate left of E. K sits to the immediate right of R. Who sits at the third position from the left end of the line?

  9. Seven people A, B, D, J, O, T and Z are sitting in a row, facing north. Only two people sit to the right of T. Only two people sit between T and B. Only two people sit between A and Z. Z sits to the immediate left of T. O sits to the immediate right of D. Who sits immediately to the right of J?

  10. Seven people A, B, D, J, O, T and Z are sitting in a row, facing north. Only D sits to the left of T. Only four people sit between D and A. Only O sits between Z and B and Z is not an immediate neighbor of A. Who sits immediately to the left of T?


Important Questions from Seating Arrangement

  1. Who sits 2nd to the right of B?

  2. ___ sits 5th to the left of C.

  3. Who is sitting opposite O?

  4. Four of the five are alike in a certain way and thus form a group. Find the one that does not belong to that group.

  5. Who is sitting at the immediate left of B?

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