Difficulty: Medium
Correct Answer: Both Statements I and II together are not sufficient.
Explanation:
Introduction / Context:Determine the bearing of P relative to R using qualitative compass relations. Distances are unspecified.
Given Data / Assumptions:
Concept / Approach:Place T as a reference and explore feasible coordinates; assess whether P→R is uniquely determined.
Step-by-Step Solution:
From I: With T at (0,0), P lies at (0, −a). R lies at (+b, −b). The vector from R to P is (−b, −a + b); its quadrant depends on the relative sizes of a and b, so the bearing is ambiguous.From II: R is NE of Q; P is north of Q. This still does not fix a and b; many consistent layouts exist.Combining I and II does not relate a and b numerically; P could be west, south-west, or south of R depending on magnitudes.Verification / Alternative check:Construct two coordinate examples that satisfy both statements but yield different P→R directions; ambiguity persists.
Why Other Options Are Wrong:
Common Pitfalls:Assuming equal distances without mention; forcing right triangles not stated.
Final Answer:D — Together not sufficient.
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