Difficulty: Medium
Correct Answer: Both statements I and II together are sufficient, but neither alone is sufficient.
Explanation:
Introduction / Context:We must verify if the four-letter word under constraints is exactly “EAST”.
Given Data / Assumptions:
Concept / Approach:Each statement alone allows multiple orderings; together they generally allow a unique arrangement that matches “EAST”.
Step-by-Step Solution:
1) Use II to forbid starts with T and keep a gap between E and S; forbid T near E.2) Use I to place A relative to T with a one-letter gap and ensure E is to the left of A.3) The only consistent ordering satisfying both is E-A-S-T (EAST).Verification / Alternative check:Try permutations that satisfy one statement; the other statement eliminates all but EAST.
Why Other Options Are Wrong:I alone or II alone leave multiple words (not conclusive); “either alone” false; “even both not sufficient” false.
Common Pitfalls:Miscounting “only one letter between …” or ignoring “not an immediate neighbour”.
Final Answer:Both statements together are sufficient; neither alone is sufficient.
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