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March 3, 2015

March 3, 2015

Posted by **Mas** on Wednesday, January 2, 2013 at 8:51am.

- algebra -
**Praphul**, Wednesday, January 2, 2013 at 8:54amAssume Friday's age = x

Fred's age = 3x

3x+x= 68

4x= 68

x=17

Fred's age = 3*17= 51

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