Renu's mother is four times as old as Renu. After 5 years, her mother will be three times as old as she will then be. How do you find their present ages?

1 Answer
Binayaka C.
Nov 23, 2016

Renu's present age is #10 # years and her mother's present age is #40# years.

Explanation:

Let Renu's present age is #x# years

Then her mother's present age is #4x# years

After 5 years , Renu's age will be # x+5# years

After 5 years , her mother's age will be # 4x+5# years

By given condition # 4x+5 =3(x+5) or 4x-3x =15-5 or x=10 ; 4x=4*10=40#.
Therefore, Renu's present age is #10 # years and her mother's present age is #40# years. [ans]

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