SOLUTION: Gerald who is twelve years old is three times as old as his sister Jane how old will Gerald be when he is twice as old as Jane.. 13;16;17;19 or 22

Question 1032822: Gerald who is twelve years old is three times as old as his sister Jane how old will Gerald be when he is twice as old as Jane.. 13;16;17;19 or 22
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Gerald who is twelve years old is three times as old as his sister Jane how old will Gerald be when he is twice as old as Jane.. 13;16;17;19 or 22
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G = 12 ; J = 4
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Equation:
12+x = 2(4+x)
12+x = 8 + 2x
x = 4 yrs
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G+4yrs = 16 yrs old
J+4yrs = 8 yrs old
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Cheers,
Stan H.
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