GATE 2017 CS (CS2) – Question 3
Five buildings V,W,X,Y,Z stand in a row. V is west of W. Z is east of X and west of V. W is west of Y. Which building is in the middle?
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Correct answer: (A) V
Explanation
The constraints give X<Z<V<W<Y from west to east. Since there are exactly five buildings, this fixes the order. V occupies position three, the middle, so A.
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