Question 911916: My grandma is three times as old as I am. She was 60 when I was born. How old is she now?
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! My grandma is three times as old as I am. She was 60 when I was born. How old is she now?
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The age difference will always be 60 years.
3x as old --> a difference of 2x your age.
2*age = 60
you're 30, she's 90
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Or,
G = Y + 60
G = 3Y
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3Y = Y + 60
2Y = 60
Y = 30
G = 90
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