Relative days – If the day that will come two days after tomorrow is Thursday, determine the weekday that occurred three days before yesterday.

Introduction / Context:
A two-part relative-day chain must be solved carefully: first pin down today, then compute a separate backward offset.

Given Data / Assumptions:

• (Tomorrow + 2) = Thursday.
• We need (yesterday - 3).

Concept / Approach:
Let today = T. Then tomorrow = T+1. Given T+3 = Thursday → T = Monday. Now compute (yesterday - 3) = (T - 1 - 3) = T - 4.

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

Verification / Alternative check:
Forward check: From Monday, tomorrow is Tuesday; two days after that is Thursday, matching the premise. Backward chain from Sunday confirms Thursday.

Why Other Options Are Wrong:
Monday/Tuesday/Wednesday are all one or more days off from the computed Thursday baseline.

Common Pitfalls:
Applying both conditions to the same direction (both forward), missing that the second part is a backward computation from “yesterday.”

Final Answer:
Thursday