If 22nd January 2011 was a Saturday, then what was the day of the week on 23rd January 2015?
Answer & explanation
Correct answer: option 2
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 }
22 Jan 2011;
22 + 01 + 06 + 11 + 02 = 42
remainder of \(\frac{42}{7}\) = 0
Therefore, the code of 0 is Saturday
Similarly,
23 Jan 2015;
23 + 01 + 06 + 15 + 03 = 48
remainder of \(\frac{48}{7}\) = 06
Therefore, the code of 06 is Friday