In 2004, there were 5 Sundays in February. What are the last two digits of the next year in which this will occur?
Now, notice that, every leap year, Feb1 moves 2 days backward from the present leap year to the next leap year.
Since the number of days in a week is 7, it will need 7 leap years from 2004 so that Feb1 occurs on a Sunday again.
so, 7 times 4 = 28 years, therefore the next year that Feb has 5 Sundays will be on 2032.