If 15 August 2001 was Wednesday, then what was the day of the week on 2 October 2001?

Tuesday

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 }

15 Aug 2001;

15 + 03 + 06 + 01 + 0 = 25

remainder of \(\frac{25}{7}\) = 04

Therefore, the code of 04 is Wednesday 

Similarly,

02 Oct 2001;

02 + 01 + 06 + 01 + 0 = 10

remainder of \(\frac{10}{7}\) = 03

Therefore, the code of 03 is Tuesday