SOLUTION: A woman is now 40 years old and her daughter is 14 years old. In how many years will the mother be exactly twice as old as her daughter?

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Question 818824: A woman is now 40 years old and her daughter is 14 years old. In how many years will the mother be exactly twice as old as her daughter?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Here's a similar problem.
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A mother is 21 years when her daughter is born how old will her daughter be when she is 1/4 of her age
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The difference is always 21
M = 4D
M = D + 21