A girl asks her mother how old she is.Mum:When i was your present age,you were2.when you are at my present age,i will be 38.Can you find how old the mum is?

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A girl asks her mother how old she is.Mum:When i was your present age,you were2.when you are at my present age,i will be 38.Can you find how old the mum is?
A girl asks her mother how old she is.Mum:When i was your present age,you were2.
when you are at my present age,i will be 38.
Can you find how old the mum is?

A girl asks her mother how old she is.Mum:When i was your present age,you were2.when you are at my present age,i will be 38.Can you find how old the mum is?
孩子他妈26,孩子14.
假设孩现在他妈年龄X,孩子年龄Y.孩他妈比孩子大（X-Y）岁.则孩子在（X-Y）年前为2岁,孩他妈在（X-Y）年后为38,得出以下方程组：
Y-(X-Y)=2
X+(X-Y)=38
可以解得X=26,Y=14.
we assumption that the age of the mum is X and the girl's age is Y now.so the mum is (X-Y) years elder than the girl.we can knwo that the girl was 2 （X-Y）years befor and the mum will be 38 （X-Y）years later,so we can get following functions:
Y-(X-Y)=2
X+(X-Y)=38
the solution is:X=26,Y=14.

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