If someone was 18 and born on July 9th, what year is their birthday?

if 18, need take year 2012 away 18

2012 - 18 = 1994 answer = dob - 1994

example, how hold 12? 13?
lets 13 years old.

2012 - 13 = 1999 answer = dob - 1999


need work out parents date of birth or anyones take age , take away years date.

eg. 2012 - 45 = 1967 answer = dob - 1967



if trying opposite , have date of birth , have work out age
or forget grans birthday example

have opposite

take years date 2012 , subtract date of birth it.

2012 - 1942 = 70 answer = 70 yrs old


hope helps understand how work question out , how sums in future.

luck :d

i need know because math teacher asked question , told ( yes did ) on internet. if 18 , born on july 9th, year birthday? need know within hour. thanks!

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