Question 989574: Robert is 3 times older than John. In 6 years, Robert will be only twice as old as John. How old is Robert right now? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Robert is 3 times older than John. In 6 years, Robert will be only twice as old as John. How old is Robert right now?
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r = 3j
r+6 = 2(j+6)
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Substitute for "r" and solve for "j"::
3j+6 = 2j+12
j = 6 (john's age now)
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r = 3j = 18 (robert's age now)
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Cheers,
Stan H.
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