SOLUTION: a man was 26 years old when his son was born. now he is three times older than his son . how old is his son now ? write a general function for this.

Question 1011222: a man was 26 years old when his son was born. now he is three times older than his son . how old is his son now ? write a general function for this.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The man will always be 26 yrs older
than his son,
Let = age of father now
Let = age of son now
--------------------------
(1) ( this equation is always true )
(2) ( this is true only at the present time )
-------------------

This is the general equation
------------------
How old is son now?
From (1) and (2),

The son is 13 now
------------------
check:
(2)
(2)
(2)
Father is 39 now
------------------
(1)
(1)
(1)
OK
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