Relative days – If the day after tomorrow is Saturday, determine which weekday was three days before yesterday.

Introduction / Context:
Another chained relative-day problem asking for a backward offset based on a forward clue.

Given Data / Assumptions:

• Day after tomorrow = Saturday.
• Find 3 days before yesterday.

Concept / Approach:
If today is T and T+2 = Saturday, then T = Thursday. Now compute (yesterday - 3) = (T - 1 - 3) = T - 4.

Step-by-Step Solution:
T + 2 = Saturday → T = Thursday.Yesterday = Wednesday.Three days before yesterday = Wednesday - 3 = Sunday.

Verification / Alternative check:
Timeline: Sun (T-4), Mon (T-3), Tue (T-2), Wed (T-1), Thu (T), Fri (T+1), Sat (T+2). Everything aligns.

Why Other Options Are Wrong:
Thursday/Monday/Saturday are not the computed T-4 result from the established T = Thursday.

Common Pitfalls:
Forgetting that “yesterday” is T-1, then subtracting 3 more days (total T-4).

Final Answer:
Sunday