Difficulty: Medium
Correct Answer: D
Explanation:
Introduction / Context:
This is an order-ranking puzzle. Careful translation of each sentence into positional constraints allows a unique sequence of five readers.
Given Data / Assumptions:
Concept / Approach:
Fill the fixed slots first (C second, A fourth), then apply exclusions (E not first/last) and the gap rule (two between B and A) to place B and E. The remaining person automatically becomes the last reader.
Step-by-Step Solution:
Verification / Alternative check:
Sequence is B (1) → C (2) → E (3) → A (4) → D (5). All clues satisfied.
Why Other Options Are Wrong:
E cannot be last; A is penultimate by statement; B is first by the gap rule.
Common Pitfalls:
Misplacing the “two between B and A,” or forgetting that C must be second.
Final Answer:
D
Discussion & Comments