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March 26, 2017

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This year Jerry is half as old as his dad and 1/3 the age of his grandfather. If the sum of their ages is 132, how old is Jerry?

  • math word problems - ,

    J is age of Jerry.
    D is age of Dad
    G is age of grandfather.
    -------------
    You know 2J = Dad's age
    You know 3J = Granfathers age
    You know D + J + G = 132.
    For D substitute 2J
    For J you have J
    For G substitute 3J
    2J + 3J + J = 132
    Solve for Jerry's age.

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