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Sum Month and Day (Posted on 2010-01-14) Difficulty: 1 of 5
It is observed that January 1, 2002 was the first "sum-day" of the 21st century, that is, when that date is written in the mm-dd-yy format, it becomes 01/01/02, and 1+1 = 2. More specifically, a "sum-day" is a date in which the month and the day add up to the year.

(i) Determine the total number of sum-days from January 1, 2002 to December 31, 2100 inclusively.

(ii) Determine the last sum-day in the period covered under (i).

No Solution Yet Submitted by K Sengupta    
Rating: 1.0000 (1 votes)

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Solution Solution Comment 5 of 5 |
365 days

every day of the year has a sum-year in that range, except 29 Feb

  Posted by Mike Jones on 2011-02-16 04:41:23
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