SOLUTION: Hi, Please help me solve the question below: A girl is 18 years old and her brother is a third of her age. When the girl is 36, what will be the age of her brother. I tried

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Question 997766: Hi,
Please help me solve the question below:
A girl is 18 years old and her brother is a third of her age. When the girl is 36, what will be the age of her brother.
I tried answering the question by doing the solution below:
= brother (18/3) = 6 years old
= girl 36
answer brother 12 year old
Let me know if this is the correct answer, if not please show me the solution.
Thanks
Melinda

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Note that the difference in their ages never changes
Girl's age = 18
Brother's age = +18%2F3+=+6+
So, the difference in their ages is +18+-+6+=+12+ yrs
When the girl is +36+, the brother will
still be 12 years younger
+36+-+12+=+24+
The brother will be 24