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If 2 is added to numerator and denoinato...

If 2 is added to numerator and denoinator to a fraction, it becomes `9/10`. If 3 is subtracted from numerator and denominator , the fraction becomes `4/5`. Find the fraction.
OR
A girl is twice as old as her sister. Four years, hence the product of their ages ( in years) will be 160. Find their present ages.

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The correct Answer is:
`:.` Fraction `=x/y=7/8`
OR
Girls present age `=6` years.
Sister's age `=12` years.
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