SOLUTION: five years ago, sue was five times as old as her sister. sue is three times as old as her sister is now, how old is sue.

Question 940629: five years ago, sue was five times as old as her sister. sue is three times as old as her sister is now, how old is sue.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
five years ago, sue was five times as old as her sister. sue is three times as old as her sister is now, how old is sue.
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Equations:
S-5 = 5(s-5)
S = 3s
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Substitute for "S" and solve for "s"::
3s-5 = 5s-25
2s = 20
s = 10 (sister's age now)
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S = 3s = 30 yrs (Sue's age now)
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Cheers,
Stan H.
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