Read the following information given below and answer the questions that…

2024

Read the following information given below and answer the questions that follow.P, Q, R, S, T, U and V are seven friends and are sitting in a circle facing the center of the circle.V is second to the left of S and is the neighbour of T and U.S is not a neighbour of R or T.P is neighbour of Q and R.Which of the following will be S’s position after T and S interchange their places?

  1. A.

    Neighbour of V and R

  2. B.

    To the immediate left of R

  3. C.

    To the immediate right of U

  4. D.

    Neighbour of R and P

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Show answer & explanation

Correct answer: A

Answer: Neighbour of V and R

Reasoning:

  • Place S at any seat. For people facing the center, a person’s left is the next seat in the clockwise direction.

  • V is second to the left of S, so V is two seats clockwise from S.

  • V is a neighbour of T and U, so T and U occupy the seats adjacent to V.

  • S is not a neighbour of R or T, so S’s neighbours must be Q and U.

  • P is neighbour of Q and R, so P sits between R and Q.

  • One seating that satisfies all constraints (clockwise) is: R, P, Q, S, U, V, T.

  • After T and S interchange positions the seating becomes (clockwise): R, P, Q, T, U, V, S.

  • In this final arrangement the neighbours of S are V and R.

Therefore S will be the neighbour of V and R.

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