Step-by-step Solution:

Quick Solution

The easiest way to solve this is to work backward from the known information (Monday) to find the day for "Today".

1. Determine the Target Day

- The statement refers to a day that is "four days after Monday".
- Counting four days forward from Monday gives us: Tuesday (1), Wednesday (2), Thursday (3), Friday (4).
- So, the target day we are talking about is a Friday.

2. Determine the Relative Day

- The problem states that this Friday is "the day after the day after tomorrow".
- Let's calculate how many days this is from "Today":

• "Tomorrow" is 1 day after Today.
• "The day after tomorrow" is 2 days after Today.
• "The day after the day after tomorrow" is therefore 3 days after Today.

3. Find "Today"

- We have now established the following equation: Today + 3 days = Friday.
- To find "Today", we simply need to count 3 days back from Friday.
- Friday - 3 days = Tuesday.

Final Answer: Today is Tuesday.