SOLUTION: Last year, Greg's father weighed three times as much as Greg. Since then, Greg has gained 9kg and father has lost 4kg. Now his father weighs only twice as much as Greg. Find their

SOLUTION: Last year, Greg's father weighed three times as much as Greg. Since then, Greg has gained 9kg and father has lost 4kg. Now his father weighs only twice as much as Greg. Find their

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Question 582665: Last year, Greg's father weighed three times as much as Greg. Since then, Greg has gained 9kg and father has lost 4kg. Now his father weighs only twice as much as Greg. Find their current weights.
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
greg = x years
father = 3x years

greg = x+9
father 3x-4
3x-4 = 2(x+9)
3x-4 = 2x+18
3x-2x= 18+4
x= 22
greg 22 years
Father = 22*3 = 66 years
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