SOLUTION: Betty's present age is twice Roni's present age. Two years ago, Betty was three times as old as Roni was then. Find their present ages.
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-> SOLUTION: Betty's present age is twice Roni's present age. Two years ago, Betty was three times as old as Roni was then. Find their present ages.
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Question 118345: Betty's present age is twice Roni's present age. Two years ago, Betty was three times as old as Roni was then. Find their present ages. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Betty's present age is twice Roni's present age.
Let Roni's present age be "x"; Then Betty's present age is "2x".
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Two years ago, Betty was three times as old as Roni was then.
Two years ago Roni was "x-2"; Betty was "2x-2"
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Find their present ages.
EQUATION:
2x-2 = 3(x-2)
2x-2 = 3x-6
x = 4 (Roni's present age)
2x= 8 (Betty[s present age)
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Cheers,
Stan H.
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