26-09-2017
Mathematics

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4. One-half of Heather's age two years from now plus one-third of her age three years ago is twenty years. How old is she now?

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26-09-2017

x = the age of Heather

One half of Heather's age two years from now plus one-third of her age three years ago is twenty years

(x + 2)/2 + (x - 3)/3 = 20

by solving the equation we find

x = 24 years

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