SOLUTION: Sarah's age is 1/3 of her father's age. In 13 years time her age will be 1/2 of her father's age. How old is Sarah now?
Algebra.Com
Question 826820: Sarah's age is 1/3 of her father's age. In 13 years time her age will be 1/2 of her father's age. How old is Sarah now?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Sarah's age now
Let = father's age now
= Sarah's age in 13 yrs
= father's age in 13 yrs
----------------------------------------
(1)
(2)
--------------------------------------
(1)
(2)
(2)
(2)
--------------------------
Substitute (1) into (2)
(2)
(2)
Sarah is 13 now
and, since
(1)
(1)
(1)
check:
(2)
(2)
(2)
(2)
OK
RELATED QUESTIONS
When Sarah turns 36 years old, her father will be 62. Currently, Sarah is 1/3 of her... (answered by macston,stanbon)
g. Penny’s age is one third her father’s age and in 13 years time her age will be half of (answered by stanbon)
Sophia`s father age is two years older than her mother. Presently, Sophia`s age is 1/4 of (answered by Timnewman)
kelly is 1/3 the age of her father. in 12 years she will be half the age of her father.... (answered by jorel1380)
Alison is 26 years younger than her father. Her father’s age will be 3 time her age in... (answered by Theo,MathTherapy,Shin123)
sophia's age is 3 years less than 2/5 of her father's age. of sophia is 9 years old, how... (answered by ikleyn)
Sarah's age three years ago is ¾ her age in four years. How old is she... (answered by ikleyn)
In 17 years a father will be twice as old as his son, whose age at the present time is... (answered by josmiceli)
Adamu is 1/3 of his father’s age. In 10 years time, his age will be 1/2 of his... (answered by josgarithmetic)