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A boy is half as old as the girl will be when the boy’s age is twice the sum of their ages when the boy was the girl’s age.

How many times older than the girl is the boy at their present age?

This is a logical problem sum.

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    sorry could you use semicolons to understand sentences correctly2012-08-09
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    i am trying to understand problem ,but could not it,please fix sentences2012-08-09
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    by the way,you could denote age of boy's as $x$ and age of girl as $y$,you know that $y=k*x$ where $k$ is some natural number2012-08-09
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    @dato: Why must $k$ be a natural number?2012-08-09
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    nu if consider proportional coefficient as floating number,then $k$ have not be necessary natural2012-08-09

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