Back-counting within the same year: If March 2, 1994 was Wednesday, what day of the week was January 25, 1994?

Introduction / Context:
To move between two dates in the same year, count the number of days between them and reduce modulo 7. Here, we go backward from a known Wednesday (Mar 2) to a January date, so we subtract the appropriate offset.

Given Data / Assumptions:

• Mar 2, 1994 = Wednesday.
• 1994 is not a leap year (no Feb 29).

Concept / Approach:
Compute days from Jan 25 to Mar 2 and reduce mod 7. Since the target (Jan 25) precedes the reference (Mar 2), move backward by that many days.

Step-by-Step Solution:

Verification / Alternative check:
Wednesday minus 1 day = Tuesday; the arithmetic agrees with 36 ≡ 1.

Why Other Options Are Wrong:
Wednesday/Thursday/Monday represent 0/+2/−2 shifts, which do not match 36 ≡ 1.

Common Pitfalls:
Mistally of days in February or off-by-one when counting inclusive/exclusive endpoints; always reduce mod 7.

Final Answer:
Tuesday