SOLUTION: James is twice as old as Keziah. Three years ago, James was thrice as old as Keziah. How old are James and Keziah now?

Question 779214: James is twice as old as Keziah. Three years ago, James was thrice as old as Keziah. How old are James and Keziah now?

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
James is twice as old as Keziah. Three years ago, James was thrice as old as Keziah. How old are James and Keziah now?
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Equations:
j = 2k
j-3 = 3(k-3)
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Substitute for "j" and solve for "k":
2k-3 = 3k-9
k = 6 yrs (Keziah's age now)
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Solve for "j":
j = 2k
j = 12 yrs (James's age now)
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Cheers,
Stan H.
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