SOLUTION: Susie is 3 times as old as lita 4 years ago.susie is 2 years older than lita how old are susie and lita?

Question 889934: Susie is 3 times as old as lita 4 years ago.susie is 2 years older than lita how old are susie and lita?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Susie's age now
Let = Lita's age now
= Lita's age 4 years ago
--------------------------------
Given:
(1)
(2)
--------------------------
The wording of this is very important.
When it says " Susie IS 3 times as old as
Lita 4 years ago, I assume I have
to use Susie's present age.
--------------------------
If it said " Susie WAS 3 times as old as Lita
4 years ago, I would use Susie's age 4
years ago.
--------------
Substitute (2) into (1)
(1)
(1)
(1)
(1)
and, since:
(2)
(2)
(2)
Susie is 9
Lita is 7
------------
check:
(1)
(1)
(1)
(1)
OK

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