SOLUTION: the ratio of ages of mother and daughter is 7:20. 4 years ago mothers age was 6 times that of her daughter. what is the present age of the mother
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Question 625355: the ratio of ages of mother and daughter is 7:20. 4 years ago mothers age was 6 times that of her daughter. what is the present age of the mother
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Mother's age now
Let = daughter's age now
given:
(1)
(2)
---------------------
(1)
(1)
Substitute (1) into (2)
(2)
Multiply both sides by
(2)
(2)
(2)
(2)
(2)
and, since
(1)
(1)
(1)
The Mother is 18. Check my math- these types of
problems usually have whole number answers.
check answer:
(2)
(2)
Multiply both sides by
(2)
(2)
It checks
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