If 21st June 2007 was a Thursday then what was the day of the week on 21 June 2011
Answer & explanation
Correct answer: option 1
We have,
21st June 2007 was a Thursday
Total number of days in a normal year = 365 days
Number of odd days in a normal year = 365/7 = 1 day
Total number of days in a leap year = 366 days
Number of odd days in a leap year = 366/7 = 2 days
21st June 2011 = Thursday + 2 (2008) + 1(2009) + 1(2010) + 1(2011) = Thursday + 5 odd days = Tuesday