Question

If the 2nd day of a month is Sunday, then what day will it be on the 31st of the same month?

• A. Saturday
• B. Sunday
• C. Monday
• D. Tuesday

Hint:

When calculating days of the week, remember to use modular arithmetic to account for the number of days in a month.

Answer 1

The Correct Option is C

If the 2nd day of the month is Sunday, the 31st day will be a Monday. This is because the 31st day is 29 days after the 2nd, and 29 mod 7 equals 1, which means it will fall on the next Monday.