SOLUTION: I am half the age of my older brother who is two years older than my sister. My sister is four years older than me. How old am I ?

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Question 1112847: I am half the age of my older brother who is two years older than my sister. My sister is four years older than me. How old am I ?
Found 2 solutions by ikleyn, greenestamps:
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.
I am x years old;  my brother is 2x years old;  my sister is 2x - 2 years old and 

    the last statement of the condition says 


x = (2x-2) -4    ("My sister is four years older than me.").


x = 2x - 6  ====>  x = 6.


Answer.  I am 6 years old.

         The brother is 12 years old.

         The sister is 10 years old.


         Everything is consistent with the condition.

Solved.

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There is a bunch of lessons on age word problems
    - Age problems and their solutions
    - A fresh formulation of a traditional age problem
    - Really intricate age word problem
    - Selected age word problems from the archive
    - Age problems for mental solution
in this site.

Read them and become an expert in solving age problems.

Also, you have this free of charge online textbook in ALGEBRA-I in this site
    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic "Age word problems".


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Free of charge online textbook in ALGEBRA-I
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to your archive and use it when it is needed.


Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


Your sister is 4 years older than you; your older brother is 2 years older than your sister. That makes your older brother 6 years older than you.

If you are 6 years younger than your older brother and half his age, then you are 6 and he is 12.

Answer: You are 6 years old.