8th December 2007 was a Saturday. What day of the week was 8th December 2006?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Friday
Going back one year moves the day back by the odd days of the year in between: 1 for 365 days, 2 for 366 days.
Between 8 December 2006 and 8 December 2007 lies February 2007, which has 28 days (2007 is not a leap year)
So the gap is 365 days \(=52\times7+1\), that is 1 odd day
Saturday − 1 day = Friday