SOLUTION: tHE father said to his son 'if im in your age now your only 3 years old. If you are in my age now, im already 78 years old. how old is the son now?
Algebra ->
Customizable Word Problem Solvers
-> Age
-> SOLUTION: tHE father said to his son 'if im in your age now your only 3 years old. If you are in my age now, im already 78 years old. how old is the son now?
Log On
Question 264795: tHE father said to his son 'if im in your age now your only 3 years old. If you are in my age now, im already 78 years old. how old is the son now? Answer by JBarnum(2146) (Show Source):
You can put this solution on YOUR website! dads age now=x
sons age now=y
x>y
------
these are the 3 equations you must find from the problem
we are looking to find what "n" is so we can find out the ages Same "n" years between "y" and 3 ("n" didnt start at 0, it started at 3, so you have to add 3 to "n" to get "y") Same "n" years between 78 and "x" "n" = the number of years between x and y
-----
Use substitution method
n=x-y
-----
plug the value of "n" into the"x" and "y" equations from above Dads age now
. Sons age now
.
checking answers:
n=x-y
