Happy Birthday Math Problem

Subtract the month of your birth eg 2 subtract the day of your birth eg 29 tell me the result after mentally dividing by 10 adding 11 and dividing by 100 your birthday is february 29.

Happy birthday math problem. The easiest way to find out without engaging in any formula would be to simply add them. Math quotes school quotes math formulas math humor physics humor engineering humor funny math jokes nerd jokes funny humor love for mathematicians and engineers 20 271 points 231 comments love for mathematicians and engineers 9gag has the best funny pics gifs videos gaming anime manga movie tv cosplay sport food memes cute fail wtf photos on the internet. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 276. Write happy birthday using log.

Add the day of your birth eg if your birthday was 29 february you d multiply by 29 add 3. Thus the birthday falls on the 23rd day of the month. The birthday problem asks how many people you need to have at a party so that there is a better than even chance that two of them will share the same birthday. And 50 is really really high.

I didn t know how and have been thinking about it ever since. This comes into play in cryptography for the birthday attack. Sqrt n is roughly the number you need to have a 50 chance of a match with n items. Sqrt 365 is about 20.

Here are a few lessons from the birthday paradox. September 28 1986 ask your friend or everyone in the room to write down the number of the month he she they were born. Even though there are 2 128 1e38 guid s we only have 2 64 1e19 to use up before a 50 chance of collision. Happy birthday pro problems math algebra equations word problems linear age and time one year from today i will be six less than three times as old as i would have been 10 years ago if i had been born n years later.

After almost 20 years.