Discussion
How many persons in the given arrangement are facing north?
Answer: B
Correct answer: Four
Only two people sit to S’s right, so S is sixth in the line, and T three places to her left is third. One person separates T from X and X sits immediately right of W, which puts X fifth and W fourth; Z, one person from W, takes the second place. U three places from X, and Y barred from either end, then leave V at the first place and U at the eighth. From left to right the line reads V, Z, T, W, X, S, Y, U.
S faces north and T, being opposite her, faces south. T’s neighbours Z and W face the same way as each other, V faces as W does, and Y and U face opposite to Z. Taking Z’s side as north makes V, Z, W and S the four facing north, with T, X, Y and U facing south.
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