Seven boxes A, B, C, D, R, S and T are kept one over the other but not necessarily in the same order. Only three boxes are kept below B. Only two boxes are kept between B and S. Only A is kept above C. R is kept at some place below D and at some place above T. Which box is kept at the second position from the bottom?

1. A

   D

2. B

   T

3. C

   C

4. D

   A

Appeared in: DSSSB 14 August 2024

Explanation

• The puzzle involves arranging 7 boxes in a vertical stack based on several relative position clues.
• The clue 'Only three boxes are kept below B' is an absolute statement, fixing Box B at the 4th position from the bottom.
• The clue 'Only A is kept above C' creates a fixed block, placing A at the top (7th position) and C just below it (6th position).
• With B at position 4 and A at position 7, the clue 'two boxes are kept between B and S' forces S into the 1st position (bottom) by elimination.
• The final clue establishes the sequence D-R-T, which perfectly fits into the remaining empty positions: 5, 3, and 2.
• This deduction places Box T at the 2nd position from the bottom, making it the correct answer.

Why Other Options Were Wrong

• Option A: Following the logical deductions, Box D is placed in the 5th position from the bottom.
• Option C: The clue 'Only A is kept above C' places Box C at the 6th position from the bottom.
• Option D: The clue 'Only A is kept above C' places Box A at the topmost (7th) position.

Related Visual

Clinical Relevance

• Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Logical Reasoning: Arrangement Puzzle as background academic context rather than a clinical decision trigger.
• While not a clinical question, it tests logical reasoning and sequential problem-solving, which are essential cognitive skills for nurses.
• Nurses use similar step-by-step deduction to prioritize patient care, follow complex treatment protocols, and troubleshoot issues in a logical sequence.
• What if? - If the clue was 'Only one box is kept between B and S', S would have to be at position 2 (since position 6 is occupied by C). This would shift the positions of R and T, changing the final answer.

How to Approach the Question

• First, visualize or sketch the structure of the puzzle, which is 7 vertical slots.
• Identify the most concrete clue to establish a fixed point. 'Only three boxes are kept below B' fixes B's position at 4.
• Use this fixed point to solve relative clues. Knowing B is at 4 helps determine the possible positions for S.
• Look for clues that create 'blocks' of items. 'Only A is kept above C' creates a two-box block that must go at the top.
• Use the process of elimination. Once a position is filled, no other item can go there. This helped place S at position 1 instead of 7.
• Combine the final relative clue ('R is below D and above T') with the remaining empty slots to complete the arrangement.

Concept Tested & Keywords

• Concept Tested: Logical Reasoning: Arrangement Puzzle
• Stem keywords: Seven boxes, kept one over the other, below B, between B and S, above C, below D, above T
• Lead-in keywords: Which box
• Negative lead-in flag: false

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QvyNyWDjdfaoC43MtTG83W

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