Why in 2018 ?
1970s
Posts: 3,093 ✭✭✭✭✭
Why in 2018 can everyone add their age to their birth year and it always comes out to 2018 ?
Any math wizards out there who can explain this ?
5
Comments
All years work like that - it's the basis of addition.
What is now proved was once only imagined. - William Blake
Because for anyone born in the AD era, the age they will turn in the current year is equal to: current year minus birth year. Therefore, birth year + age on birthday in current year will always equal the current year. Your statement, as written, isn't true for someone who hasn't reached their birthday in 2018 yet.
To keep it coin related, happy belated 140th to the Morgan dollar!
Doesn't work for
1) People whose birthdays are later in the year than today.
2) People born on Feb 29
3) People, who for various reasons, do not have a birth year that corresponds to their birth age year. For example, my birth year is recorded 2 years and several day different from my "arrival" in the world.
You are adding a previously subtracted number.
Any time you add your age to your birth year you will find the current year.
2000+18=2018
2018-18=2000
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I tried it. Didn't work. Might try again on my birthday here in a month and see if I get lucky.
Works for me....and I would believe anyone that was 'born'...and recorded correctly. Cheers, RickO
I hate the new math.
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Here's some math to support this:
Add Birth Year to both sides
Birth Year on right side cancels each other out to result in "+0"
Removing extraneous "+0" results in:
Next year, adding your age to your birth year will be 2019
Where is it recorded that your birth year is not when you were born?
I have 3 birth certificates with 3 different days and 3 different years. I asked out it one time, and was told to leave it alone.
So I use the youngest one.
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It does work if the current date is March 1 or later.
How?
Abbott and Costello said it best in their routine of 7 times 13 equals 28. Watch it on YouTube it's a classic. Peace Roy
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i quit figuring that way. i dont like the numbers. just saying