Question 1037092: I am 34years old my elder brother iis 45years old how old is ny mom an dad when we are 7 children in a spacing of 2:2:2:2:2:2:3 please.help me
Answer by KMST(5328)   (Show Source):
You can put this solution on YOUR website! Not enough information, because we do not know how old your parents were when the first (or any) of their children were born.
There may also be a typo, because 2:2:2:2:2:2:3 is a sequence of 7 numbers,
when a sequence of 6 age gaps was expected.
(If there are 7 children, there are 6 age gaps between consecutive children).
Maybe the spacing should be
   , meaning that
the second child is years younger than the oldest,
the third child is 2 years younger than the second child,
the fourth child is 2 years younger than the third child, and so on,
except that the seventh (and youngest) child is years younger than the sixth child.
If one of those gaps is three years, and the other 5 gaps are 2 years,
the age difference between the youngest and oldest children is
 .
A gap of  is years less than the gap between oldest and youngest.
So, your elder brother is the second child, and you are the seventh child.
That means that the first/oldest child is years older than your elder brother.
The oldest child is  years old.
We do not know how old your parents were when your oldest sibling was born.
Was your mother very old when she had her last (youngest) child?
Before assisted reproduction, the oldest mother on record was  when
she had her last child.
If that child had been you (34 now), your mother would now be
 .
Was your mother very young when she had her first child?
If your mother had her first child at age  ,
and her first/oldest child has been calculated (above) as being  now,
your mother would be  years old now.
(Some girls have become mothers even younger than that, but I do not want to contemplate that scenario).
NOTE:
To have enough information, a problem could
indicate what parent (mother or father) is older, and
give 8 age gaps between the 9 family members closest in age, from older to youngest.
If those age gaps were 2:20:2:2:2:2:2:3,
the first 2 would be the age difference between parents,
the 20 would be the age of your mother when her first child was born;
the next 2 would be the age difference between that first child and the second child, and so on.
If you are 34, with a 45-year old brother,
and your father is older than your mother,
we would conclude that
your father is 2 years older than your mother;
20 is the age of your mother when her first child was born;
that first child is 2 years older than the second child
(who is your 45-year old brother),
and the remaining numbers add up to
 ,
the age difference between your 45-year old brother
and the youngest child, who is you (a 34-year old).
That would make your oldest sibling's age 
your mother's age would be  ,
and your father's age would be  .
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