SOLUTION: Marie is one-nineth as old as her mother. In 3 years she will be one-fifth as old as her mother will be then. Find their present ages.
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Question 268953: Marie is one-nineth as old as her mother. In 3 years she will be one-fifth as old as her mother will be then. Find their present ages.
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
(i)
(ii)
from (i) we get
(iii)
substitute this into (ii) we get
(iv)
distribute to get
(v)
subtract ma and subtract 3/5 to get
(vi)
multiply by 5 to get
(vii)
divide by 4 to get
maria = 3
mother = 27
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