DSSSB 12 August 2024
Reasoning
Hard

Each of P, Q, R, S, T, U and V has an exam on a different day of the week starting from Monday and ending on Sunday of the same week.

Q has an exam on Saturday. Only three people have exams between S and Q. R has an exam immediately before P but not on Wednesday. U has the exam on some day before T but not on Monday. How many people have exams between V and P?

Appeared in: DSSSB 12 August 2024

Explanation

  • The puzzle is solved by systematically applying each clue to a 7-day schedule (Monday-Sunday).
  • Placing Q on Saturday and then S on Tuesday (three days between them) establishes the core structure.
  • The consecutive placement of R and P on Thursday and Friday is determined by the remaining empty slots and the constraint that R is not on Wednesday.
  • V is placed on Monday, and P is on Friday.
  • Counting the days between Monday and Friday reveals three individuals: S (Tuesday), U (Wednesday), and R (Thursday).

Why Other Options Were Wrong

  • Option A: This is incorrect. The final arrangement places V on Monday and P on Friday, with only three days (and three people) in between.
  • Option B: This is incorrect. The logical deduction leaves three people (S, U, R) between V and P.
  • Option C: This is incorrect. This would imply only one day separates V and P, which contradicts the derived schedule.

Related Visual

Visual explanation — 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 Sequential Arrangement as background academic context rather than a clinical decision trigger.
  • While this is a non-clinical reasoning question, the underlying skills are highly relevant to nursing.
  • Logical deduction and sequencing are crucial for prioritizing patient care, especially when managing multiple patients with varying needs.
  • This type of thinking helps in creating and following complex medication schedules, organizing nursing workflows, and troubleshooting clinical problems in a step-by-step manner.
How to Approach the Question
  • First, identify all the entities (people) and the timeline (days of the week). Create a blank schedule from Monday to Sunday.
  • Anchor the schedule with the most definite clue: 'Q has an exam on Saturday'. Place Q in the Saturday slot.
  • Use clues with specific numbers or gaps next. 'Three people have exams between S and Q' allows you to place S definitively on Tuesday.
  • Address the conditional and relational clues. Look for consecutive empty slots for 'R immediately before P', while respecting the negative constraint 'R not on Wednesday'. This places R on Thursday and P on Friday.
  • Use the process of elimination for the remaining people and slots. Place U and T based on their relative order ('U before T') and constraints ('U not on Monday').
  • The last remaining person (V) fits into the last empty slot (Monday). Finally, answer the specific question asked ('How many people between V and P?').
Concept Tested & Keywords
  • Concept Tested: Logical Reasoning and Sequential Arrangement
  • Stem keywords: P, Q, R, S, T, U, V, exam, day of the week, Monday, Sunday
  • Lead-in keywords: How many

Question ID

QGjjQyLAu_qrmkXBo6Qg-P

Practise the full DSSSB 12 August 2024

Attempt every question from this paper in a timed mock, then review the full solution for each one.

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