If the 9th day of a month is Sunday, what will be the last day of the month, on which Sunday will fall?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 30th
The same weekday comes back every 7 days, so the Sundays of the month are found by adding 7 to the 9th again and again.
9th, 16th, 23rd and 30th are Sundays
The next Sunday would be the \(30+7=37\)th, beyond the end of any month
So in a month of 30 or 31 days, the last Sunday falls on the 30th.