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Mathematics 18 Online
OpenStudy (callisto):

Given that 29th Jan 2005 is Saturday, on what day is 29th Jan 2008?

OpenStudy (kymber):

Tuesday?

OpenStudy (callisto):

Actually, I don't have the answer. I would like to know the way to solve this type of problems. Thanks!

OpenStudy (callisto):

Note: no calculator is allowed in doing this question. And I'm sorry that I haven't learnt mod :(

OpenStudy (kymber):

I thought it was; 2005 is Saturday, so then 2006 is Sunday, 2007 is Monday..

OpenStudy (experimentx):

http://www.wolframalpha.com/input/?i=tuesday+%2B+floor%5B365.25*3%5D+mod+7 my guess ... friday!!

OpenStudy (anonymous):

ask the Rain Man.... but he's watching Jeopardy....

OpenStudy (callisto):

._. It's Tuesday... I believe... 365 = 52*7+1 So, at 2006 it's sat +1 -> Sunday At 2008,it's Tuesday 2009 -> Thursday (since leap year for 2008) Yeah!~ Solved :)

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