SOLUTION: Two years ago, my age was 4 times that of my son. In 3 years, my is only 3 times that of my son. What is our age now? The question asks for only one variable. I only know how to do
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Question 876099: Two years ago, my age was 4 times that of my son. In 3 years, my is only 3 times that of my son. What is our age now? The question asks for only one variable. I only know how to do it with two.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
You could say the son's age now =
2 yrs ago, the son's age was
The father's age 2 yrs ago was
----------------------------------------
So, now, 2 yrs later, the father's age is
---------------------------------------------------
In 3 yrs, the son will be
In 3 yrs, the father will be
--------------------------------------------
You are given that:
---------------------------------
Solve for
and, the father's age now is:
--------------------------
The father is 42 and the son is 12
check:
2 yrs ago,
f = 40
s = 10
Father's age is 4 times the son's
-------------
In 3 yrs:
f = 45
s = 15
Father's age is 3 times the son's
OK
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