Read the following information and answer the question that follows. P, Q, R,…

2024

Read the following information and answer the question that follows.

  1. P, Q, R, S, T, U and V are seven friends sitting in a circle, facing the centre.

  2. V is second to the left of S and is the neighbour of both T and U.

  3. S is not a neighbour of R or T.

  4. P is a neighbour of both Q and R.

Which of the following is correct?

(Questions 21 to 23 are based on this same set of information.)

  1. A.

    Q is between P and S

  2. B.

    S is between U and P

  3. C.

    T is to the immediate right of V

  4. D.

    U is to the immediate left of V

Attempted by 2 students.

Show answer & explanation

Correct answer: A

Concept: To solve a circular-arrangement puzzle, first anchor one person using a directional clue (such as “second to the left of X”), then use each neighbour/adjacency clue to lock the seats next to that anchor, and finally use the negative clues (who is NOT a neighbour of whom) to break any remaining tie. Once every seat is fixed, cross-check all the given clues against the completed circle before reading off the answer.

Step-by-step placement:

  1. Fix S as the reference seat, since S is used in the “second to the left” clue.

  2. Clue ii places V two seats to the left of S.

  3. Clue ii also says V's only two neighbours are T and U, so the two seats next to V must hold T and U (order still to be fixed).

  4. One of those two seats next to V is also the seat immediately next to S. Clue iii rules out T as a neighbour of S, so that shared seat must be U, which leaves T on the other side of V.

  5. Three consecutive seats remain, for P, Q and R. Clue iv (P is a neighbour of both Q and R) forces P into the middle seat of these three, with Q and R on either side of P.

  6. Clue iii also rules out R as a neighbour of S. Of the two remaining seats next to P, only one is adjacent to S; R must take the other seat, so Q takes the seat next to S.

  7. This fixes every seat, in order around the circle: S, U, V, T, R, P, Q.

Final seating, reading clockwise around the circle:

Seat 1

Seat 2

Seat 3

Seat 4

Seat 5

Seat 6

Seat 7

S

U

V

T

R

P

Q

Cross-check against every clue:

  • V is second to the left of S — confirmed by the seat order above.

  • V's neighbours are T and U — confirmed.

  • S's neighbours are Q and U, so S is a neighbour of neither R nor T — confirmed.

  • P's neighbours are R and Q — confirmed.

Result: Q's two neighbours in this layout are P and S, so “Q is between P and S” is the statement that holds; none of the seating relations in the other three statements match this layout.

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