SOLUTION: A woman is now 30 years older than her son. 15 years ago,she was twice as old. What are the present ages of the woman and her son

Question 1104122: A woman is now 30 years older than her son. 15 years ago,she was twice as old. What are the present ages of the woman and her son
Found 3 solutions by josmiceli, josgarithmetic, Alan3354:
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
Let = present age of the woman
Let = present age of her son
-----------------------------------
(1)
(2)
-----------------------------
(2)
(2)
and
(1)
Add (1) and (2)

and
(1)
(1)
(1)
---------------------
The woman is 75
Her son is 45
---------------------
check:
(2)
(2)
(2)
(2)
OK
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
w, woman
y, son

, the son now
-
, the woman now
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
A woman is now 30 years older than her son. 15 years ago,she was twice as old. What are the present ages of the woman and her son
------------
The age difference is constant = 30 years.
--> she was 2x his age at 30 & 60
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"present age" is redundant. Just "age" is sufficient.
It's similar to "where are you now?" --> Where are you?
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