Seven friends P, Q, R, S, T, W, and X are sitting in a straight line facing north, not necessarily in the same order. R is second to the left of X. S is second to the right of W. Q is second to the right of P. S is second to the left of T. Q is an immediate neighbour of S. P is not an immediate neighbour of S. Who among the following is sitting in the middle of the straight line?

Correct answer: S

Solution

Using the clues, S must be fixed relative to W and T, and Q must sit adjacent to S. After arranging all seven people consistently, S occupies the central position in the row.

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