1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Introductory Question

  1. Sep 26, 2008 #1
    5 years ago, I was one-sixth age of my brother. In three years my age doubled will match my brother's age. How old is my age.

    I tried setting up with 2 variables

    1/6(I-5) = B-5

    2(I+3) = B+3

    and solved for I then i get a fraction.

    is there any better approach to this?
     
  2. jcsd
  3. Sep 27, 2008 #2

    PhanthomJay

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    You posted this in the wrong forum. Regardless, while your second equation is correct, you reversed your B and I in the first.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook