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
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.