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In this question, a question is followed by two statements numbered (I) and (II). You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and decide the appropriate answer.
Question: Five people V, W, X, Y and Z are sitting in a straight row, facing north. Who sits to the immediate left of Z?
Consider the following statements:
Statement (I): Both V and X are immediate neighbours of Y. V sits at one of the extreme ends of the row.
Statement (II): Z sits to the immediate left of W. W sits at one of the extreme ends of the row.
Decide if the data provided in the statements is sufficient to answer the question.
Data in either statement I alone or statement II alone are sufficient to answer the question.
Data in statement II alone is sufficient to answer the question while data in statement I is not.
Data in statements I and II together are sufficient to answer the question.
Data in statement I alone is sufficient to answer the question while data in statement II is not.
Data in statements I and II together are sufficient to answer the question.
Map fixed positions from both statements: Statement II anchors W and Z, while Statement I defines the block Y, V, X. Filling the 5 slots with these constraints determines the full sequence.
Map fixed positions from both statements: Statement II anchors W and Z, while Statement I defines the block Y, V, X. Filling the 5 slots with these constraints determines the full sequence.
Analyze Statement II
W sits at an extreme end. Since Z sits to the immediate left of W, W must be at the right end (Position 5) so that Z can occupy Position 4. Sequence: _ _ _ ZW.
Analyze Statement I
V and X are immediate neighbors of Y, meaning the block is V-Y-X or X-Y-V. V is at an extreme end. With positions 4 and 5 taken, the remaining slots are 1, 2, and 3.
Combine Statements
If V is at position 1, Y must be 2 and X must be 3. The full row is V, Y, X, Z, W. In this arrangement, X is to the immediate left of Z.
A: Insufficient because neither statement alone places all 5 people. B: Incorrect because statement II only places W and Z, leaving others ambiguous. D: Incorrect because statement I does not define the position of Z relative to others.
C is correct because combining the extreme end positions of W from Statement II and the block formation of V, Y, X from Statement I uniquely identifies the seating order as V, Y, X, Z, W.
In seating arrangement sufficiency questions, always check if the individual statements provide enough anchor points; if not, look for how blocks (like V-Y-X) interact with fixed end-points.
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