The one hundredth day of a non-leap year is April 10.
The two hundredth day of a leap year is July 18.
February 29 is the date of leap year.
The 10th of April in an ordinary year and the 9th of April in a leap year.
That date doesn't exist; no odd-numbered year can be a leap year.
The 10th of April in a normal year and the 9th of April in a leap year.
During a year that is not a leap year it is April 10. For leap years it is April 9.
The question makes no sense since 2010 is not a leap year.
During a year that is not a leap year it is April 10. For leap years it is April 9.
The answer is 43
April 25 in a leap year; April 26 in a non-leap year
September 6 is not a year - it is one day out of the year. And September 6 is not the date which gets added during a leap year.
24 March of a non-leap year and 23 March of a leap year