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21-01-2016
Mathematics

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jack said, " Five times my age in 2 years is 100." How old is Jack now?

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21-01-2016

Jack is 18 years old

First divide 100 by 5 and you get 20, right? 20 is 2 years older than Jack is. So subtract 2 from 20 years and you get 18 years, Jack's age.

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