If P and R interchange their positions then which of the following pair will sit together ?
Answer: C
Correct answer: VT
Facing the centre, each girl’s right is the next seat anticlockwise and her left the next seat clockwise. P next to V’s left puts P one seat clockwise of V; R fourth to P’s right puts R two seats clockwise of P. Filling in the rest gives the circle, clockwise, as V → P → S → R → Q → T, with T next to V and so not between Q and S.
Exchanging P and R gives the circle V, R, S, P, Q, T. Of the pairs offered, only V and T are then neighbours - and they were neighbours before the swap too, since neither of them moved.
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