If 28 February 2020 was Friday, then what was the day of the week on 30 December 2015?
Answer & explanation
Correct answer: option 1
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 2020;
28 + 03 + 6 + 20 + 05 = 62
remainder of \(\frac{62}{7}\) = 06
Therefore, the code of 06 is Friday
Similarly,
30 Dec 2015
30 + 06 + 06 + 15 + 03 = 60
remainder of \(\frac{60}{7}\) = 04
Therefore, the code of 04 is Wednsday