SOLUTION: 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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Question 818825: A mother is 21 years when her daughter is born how old will her daughter be when she is 1/4 of her age
Answer by Alan3354(69443) About Me  (Show Source):
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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