Relative-day reasoning with offsets: Satish read a book on Sunday. Sudha read the same book one day prior to Anil but four days after Satish. On which day did Anil read the book?

Introduction / Context:
This problem tests chained day-offset reasoning. You translate narrative constraints into numeric day shifts relative to an anchor day, then resolve the target day. Such questions strengthen timeline tracking and relative sequencing skills.

Given Data / Assumptions:

• Satish read on Sunday.
• Sudha read four days after Satish.
• Sudha read one day prior to Anil (i.e., Sudha = Anil - 1 day).

Concept / Approach:
Map each constraint to a day-of-week movement. Use modular arithmetic on the seven-day cycle or simply count forward, then apply the “one day prior” relation backward to get Anil’s day.

Step-by-Step Solution:

Verification / Alternative check:
Counting from Sunday: Mon(1), Tue(2), Wed(3), Thu(4). Then Anil is the next day, Friday. No wrap-around needed here; still consistent if you start from any weekly calendar.

Why Other Options Are Wrong:

• Thursday: That is Sudha’s day, not Anil’s.
• Tuesday/Saturday/Wednesday: Do not satisfy both the “+4 from Sunday” and “-1 from Anil” constraints simultaneously.

Common Pitfalls:
Miscounting offset days (e.g., mistakenly adding 3 instead of 4). Also mixing up “one day prior to Anil” (Sudha before Anil) vs. “one day after Anil.”

Final Answer:
Friday