If 3 March 2020 was Tuesday, then what was the day of the week on 3 February 2019?

Sunday

Using Code Method :-

\(\frac{Date+Month code+Year code+Last 2 digits of yr+Leap yrs till given yr}{7}\)

(Note: Remainder of the above sum will be the code of week day}

03 March 2020

03 + 04 + 06 + 20 + 05 = 38

remainder of \(\frac{38}{7}\) = 03

Therefore, the code of 03 is Tuesday

Similarly,

03 Feb 2019;

03 + 04 + 06 + 19 + 04 = 36

remainder of \(\frac{36}{7}\) = 01

Therefore, the code of 01 is Sunday