All Questions
Tagged with calendar-computations number-theory
4
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Suppose today is Wednesday. What day of the week will it be $10^{{10}^{10}}$ days from now? [duplicate]
Question: Suppose today is Wednesday. What day of the week will it be $10^{{10}^{10}}$ days from now?
Answer: This is what I have tried so far. I know that you need to find $10^{{10}^{10}}\text{mod} 7$...
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Number of 1st Jan Sundays between year a and b.
Given two year number a and b (eg a=1000 b=2000). Find the number of 1st January Sundays? Given 1st Jan 2001 was Monday?
I figured that day sequence repeat after 28 years. But produced wrong answer. ...
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Is Christmas equally Likely to fall on any day of the week? [duplicate]
Assuming Christmas day falls on the 25th of December every year, and using the Gregorian calendar, is it equally likely to fall on any day of the week? (With no prior knowledge about last year's ...
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Calculate which day of the week a date falls in using modular arithmetic
In Summer Wars the main character (he is a mathematician) calculates the day of the week of someone's birthday (19/07/1992 is Sunday). I know (very) basic modular arithmetic but I can't figure out how ...
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