Five people P, Q, R, S and T sit in a row. Q is at the extreme left and T is at the extreme right. R sits immediately to the right of Q. Who could sit in the middle?
- A. Q or T
- B. P or S
- C. R only
- D. T only
Explanation
Q, R and T occupy positions one, two and five, leaving positions three and four for P and S in either order, so the middle seat is taken by whichever of them is placed third. Q and T are pinned to the ends and R to position two. Listing the fixed seats first narrows the possibilities quickly.
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