A, B, C, D, Q and R live on six different floors of the same building. The lowermost floor in the building is numbered 1, the floor above it is numbered 2 and so on till the topmost floor, which is numbered 6. Only A lives above B. D lives immediately below B. Only R lives below Q. Who lives on floor number 3?

1. A

   A

2. B

   D

3. C

   C

4. D

   R

Appeared in: DSSSB 14 August 2024

Explanation

• The clue 'Only A lives above B' definitively places A on the 6th floor and B on the 5th floor.
• Following this, the clue 'D lives immediately below B' places D on the 4th floor.
• Similarly, the clue 'Only R lives below Q' places Q on the 2nd floor and R on the 1st floor.
• By process of elimination, the only person left is C, and the only available floor is the 3rd. Therefore, C lives on the 3rd floor.

Why Other Options Were Wrong

• Option A: A lives on the 6th floor. The clue 'Only A lives above B' means A must be on the topmost floor.
• Option B: D lives on the 4th floor. The clue 'D lives immediately below B' places D on floor 4, as B is on floor 5.
• Option D: R lives on the 1st floor. The clue 'Only R lives below Q' means R must be on the lowermost floor.

Related Visual

Clinical Relevance

• Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Logical Reasoning: Floor Arrangement Puzzle as background academic context rather than a clinical decision trigger.
• While not a clinical question, logical reasoning is a foundational skill for nurses to analyze patient data, prioritize tasks, and make sound clinical judgments.
• This type of puzzle enhances critical thinking and the ability to process multiple pieces of information to arrive at a single, correct conclusion.
• What if the clue was 'At least one person lives above B' instead of 'Only A lives above B'? This would make the puzzle unsolvable without more information, as B could be on any floor from 1 to 5, highlighting the importance of precise language in clinical communication.

How to Approach the Question

• First, identify the fixed elements of the puzzle: there are 6 floors (numbered 1-6) and 6 people.
• Scan the clues for absolute statements that fix positions. 'Only A lives above B' and 'Only R lives below Q' are the most powerful clues, as they immediately place four people.
• Use these fixed positions as anchors. For example, once you know B is on floor 5, you can immediately place D on floor 4.
• Draw a simple diagram or table with six slots for the floors. Fill in the names as you deduce their positions.
• Use the process of elimination for the final placement. Once five floors are filled, the last person automatically goes into the last empty slot.

Concept Tested & Keywords

• Concept Tested: Logical Reasoning: Floor Arrangement Puzzle
• Stem keywords: six different floors, lowermost floor, topmost floor, lives above, immediately below
• Lead-in keywords: Who lives on

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QZHy-e5gTUXSn46vUYPOAw

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