SOLUTION: The sum of the ages of a woman and her son is 64 years. In 4 years time the woman will be three and half times as old as her son. How old were they three years ago?
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Question 1139422: The sum of the ages of a woman and her son is 64 years. In 4 years time the woman will be three and half times as old as her son. How old were they three years ago? Answer by MathLover1(20849) (Show Source):
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let the age of a woman be and her son’s age be
given: .....eq.1
in years time the woman will be = times as old as her son:
........eq.2
from eq.1 and eq.2 we have:
=> her son’s age now
.....eq.1 =>the woman’s age now
How old were they three years ago? => son’s age three years ago => woman’s age three years ago
