To determine what day it was 200 days ago from today, which we are assuming is a Tuesday, we need to perform a simple calculation using modular arithmetic.
First, let’s find out how many weeks are in 200 days. We know that a week has 7 days. So, we divide 200 by 7:
- 200 รท 7 = 28 weeks and 4 days
This means that 200 days ago was exactly 28 weeks and 4 days back from today. Since 28 weeks would bring us back to the same day (Tuesday), we only need to account for the additional 4 days.
Counting back 4 days from Tuesday, we get:
- 1 day back: Monday
- 2 days back: Sunday
- 3 days back: Saturday
- 4 days back: Friday
Thus, if today is Tuesday, 200 days ago was a Friday.