alvina1302 alvina1302

21-06-2017
Mathematics

contestada

A mother is three times as old as her son. In 9 years, she will be twice his age. Find the mother's current age.

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urvashi urvashi

21-06-2017

3m=s
3m+9=2s
therefore s=9
so the mother is 27 and the son is 9

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