Correct Answer: Saturday

Solution : Given:
Find the day of the week on 19 February 2011.

As 2000 is divisible by 400, the number of odd days is 0.
Number of leap year till 2010 = 2 (2004, 2008)
Number of ordinary years till 2010 = 8
Number of odd days till 2011 = 8 + 2 + 2 = 12
Total number of odd days till 19 February 2011 = 12 + 31 + 19 = 62 odd days;
= 62 ÷ 7 =  6 remainder or odd days.
Monday→1; Tuesday→2; Wednesday→3; Thursday→4; Friday→5; Saturday→6

So, the day on 19 February 2011 was Saturday. Hence, the third option is correct