January 11, 1997 was a Sunday. What day of the week was on January 7, 2000?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Saturday
An ordinary year of 365 days is 52 weeks and 1 odd day, so the same date moves one weekday ahead; a span that includes 29 February has 2 odd days.
11 January 1997 to 11 January 1998: no 29 February, 1 odd day, so Monday.
11 January 1998 to 11 January 1999: 1 odd day, so Tuesday.
11 January 1999 to 11 January 2000: the span ends before 29 February 2000, so 1 odd day, giving Wednesday.
7 January 2000 is 4 days before 11 January 2000; four days back from Wednesday is Saturday.
Tip: A leap day adds an odd day only when 29 February falls inside the span counted; 2000 is a leap year, but its 29 February comes after January.