SOLUTION: A mother is twice as old as her daughter.Twenty years ago, the mother was four times as old as her daughter. What is their present age?
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Question 395229: A mother is twice as old as her daughter.Twenty years ago, the mother was four times as old as her daughter. What is their present age?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
A mother is twice as old as her daughter.Twenty years ago, the mother was four times as old as her daughter. What is their present age?
...
daughter = x years
mother = 2x years
...
20 years ago
daughter = x-20
mother = 2x-20
..
2x-20 = 4(x-20)
2x-20 = 4x-80
2x-4x=-60
-2x=-60
x=30 daughter's age
mother's age = 60 years
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