Each of U, V, W, X, A, B and C has an exam on a different day of a week starting from Monday and ending on Sunday of the same week. Only three people have exam between W and U. U has exam on the last day of the week. Only one person has exam between B and A. V has exam immediately the day before C. X doesn't have exam on Friday. How many people have exam between X and V?

1. A

   Two

2. B

   Three

3. C

   One

4. D

   Four

Appeared in: DSSSB 13 August 2024

Explanation

• The final, unique schedule places X's exam on Monday and V's exam on Friday.
• The days between Monday and Friday are Tuesday, Wednesday, and Thursday.
• The people scheduled for exams on these three days are A/B, W, and B/A.
• Therefore, exactly three people have their exams between X and V.

Why Other Options Were Wrong

• Option A: This is incorrect. The logical deduction shows three people (on Tuesday, Wednesday, and Thursday) have exams between X (on Monday) and V (on Friday).
• Option C: This is incorrect. The person on Wednesday (W) alone does not account for the people on Tuesday (A/B) and Thursday (B/A) who are also between X and V.
• Option D: This is incorrect. There are only three available days (and thus three people) between Monday and Friday in the final schedule.

Related Visual

Clinical Relevance

• Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Logical Reasoning and Scheduling Puzzles as background academic context rather than a clinical decision trigger.
• While this is a non-clinical question, the underlying skill of logical reasoning is crucial in nursing.
• Nurses use deductive reasoning daily for tasks like creating patient care plans, prioritizing interventions based on changing symptoms (triage), and managing complex medication schedules.
• Strong analytical skills help in troubleshooting equipment, interpreting lab results in the context of a patient's condition, and making sound clinical judgments under pressure.

How to Approach the Question

• First, identify the fixed information. Here, 'U has an exam on the last day' (Sunday) is a fixed point.
• Use the fixed point to place other related pieces. 'Three people between W and U' places W on Wednesday.
• Create a visual aid, like a table for the days of the week, and fill in the knowns.
• Identify 'blocks' of conditions, such as 'V has an exam immediately the day before C' (a V-C block).
• Test the placement of these blocks in the remaining empty slots. Use the process of elimination to discard scenarios that violate any of the rules (e.g., 'X doesn't have an exam on Friday').
• Once the single valid schedule is determined, re-read the question and find the specific information requested.

Concept Tested & Keywords

• Concept Tested: Logical Reasoning and Scheduling Puzzles
• Stem keywords: exam, different day of a week, Monday, Sunday, between
• Lead-in keywords: How many

Question ID

QyertdLlnkRekRjWPA2f56

Copy ID