March 1, 2008 was Saturday. Which day was it on March 1, 2002?
(a) Thursday (b) Friday (c) Saturday (d) Sunday
(b) In a year, number of weeks = 52 extra day = 1
From 2002 to 2008, there are 6 years.
So number of extra days = 6 (1) = 6
While 2004 and 2008 are leap years,
having one more extra day apart from the normal extra day.
Thus, number of extra days = 6 + 1 + 1 = 8
Out of these 8 extra days, 7 days form a week and so 1 day remains.
Hence, March 1, 2002 is 1 day less then March 1, 2008 i.e., it is Friday.