If 28 February 2017 was Tuesday, then what was the day of the week on 28 February 2019?

Thursday

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 }

28 Feb 2017;

28 + 04 + 06 + 17 + 04 = 59

remainder of \(\frac{59}{7}\) = 03

Therefore, the code of 03 is Tuesday

Similarly,

28 Feb 2019;

28 + 04 + 06 + 19 + 04 = 61

remainder of \(\frac{61}{7}\) = 05

Therefore, the code of 05 is Thursday