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Crispy
Sunhillow

Posted Mon Aug 01, 2022 8:02 am

Here's a Monday morning brain teaser to help clear the fog, and kickstart you back into action.

In the current year, 2022, there are people whose age matches the last two digits of the year they were born. What's their age, and what year were they born?

Good luck!

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McTrinsic

Posted Mon Aug 01, 2022 2:15 pm

Maybe I don’t understand the riddle and something got lost in translation… 11?

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BatteMan
France
Website

Posted Thu Aug 04, 2022 12:40 am

22 and they were born in 2000 ?

For myself, I just needed to erase two 0 between 2000 and 2009 to get my age ;-)

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KeyBizGuy

Posted Sat Aug 06, 2022 3:19 pm

Age 61, born in 1961.

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コロッケ

Posted Sat Aug 06, 2022 6:27 pm

Crispy wrote:
Mon Aug 01, 2022 8:02 am
In the current year, 2022, there are people whose age matches the last two digits of the year they were born. What's their age, and what year were they born?
For the age 0 up to 99, the condition is only valid for people born in 2011 or 1961.

The condition cannot be valid for anyone past 100, because ages with 3 digits will never match a 2 digits number.
The condition cannot be valid for anyone before age 0, because they are not people yet.

Image

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dddaaannn

Posted Sun Aug 07, 2022 9:59 am

Algebraically:

2022-year = year-2000
2*year = 4022
year = 2011, age = 11

2022-year = year-1900
2*year = 3922
year = 1961, age = 61





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