If 15th August 1947 was a Friday, what was the day of the week on 26th November 1949?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Saturday
Only the odd days (days left over after whole weeks) move the day of the week. A year from one date to the same date gives 1 odd day, or 2 when a 29th February falls in between. So first move to 15th August 1949, then count the days to 26th November.
15 August 1947 to 15 August 1948: 29th February 1948 falls in between, so 366 days and 2 odd days
15 August 1948 to 15 August 1949: 365 days, 1 odd day
So 15 August 1949 was Friday + 3 = Monday
Days after 15 August 1949 up to 26 November: \(16+30+31+26=103\) (rest of August, September, October, November)
\(103=14\times7+5\), so 5 odd days
Monday + 5 = Saturday