UPSC Civil Services 2020 Prelims General Studies Paper II

Here, 12th January = Sunday January + February + March + April + May + June + July
19+29+31+30+31+30+15
=185 days (In a leap year) and 185−1=184 (not a leap year)
(A) 15th July (a leap year) =185 day =7(26)+3= Sunday +3= Wednesday
(B) 15 th July (not a leap year) =184 days =7(26)+2= Sunday +2= Tuesday
(C) 12 th July (a leap year) =185−3=182
=7(26)= Sunday.