What was the day of the week on 18 March 2020?
Show answer & explanation
Correct answer: B
Explanation
January 1, 2020 = Wednesday (2020 was a leap year)
January = 31 days → 3 extra days
February = 29 days → 1 extra day
March = 17 days (before March 18) → 17 ≡ 3 (mod 7)
Total extra days = 3 + 1 + 3 = 7 ≡ 0 (mod 7)
Therefore, March 18, 2020, will be the same day as January 1, 2020, i.e., Wednesday.