If March 27, 2011 was Sunday, what was the day on June 27, 2011?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Monday
The days of the week repeat every 7 days, so only the odd days (the remainder after dividing by 7) move the weekday forward. Count the days from 27 March to 27 June 2011 month by month:
March, after the 27th (28 to 31): 4 days
April: 30 days
May: 31 days
June, up to the 27th: 27 days
Total: \(4+30+31+27=92\) days
\(92=13\times7+1\), so there is 1 odd day
One day after Sunday is Monday.