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How old is Sarah?

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Sarah went to get her drivers license. When asked her age, she replied: "My age today is three times what it will be three years from now minus three times what my age was three years ago."
How old is Sarah?

posted Aug 21, 2015 by Anuradha Tabyal

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1 Answer

+1 vote

Let Sarah's todays age be x
then her present age
x= 3(her age after 3 years)- 3*(her age 3 years ago)
x=3*(x+3)-3*(x-3)
x=3x+9-3x+9
x=18

Sarah's present age is 18 years

answer Aug 24, 2015 by Jyoti Mhaske



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