Sunday
April 20, 2014

Homework Help: Math

Posted by Zach on Tuesday, May 4, 2010 at 11:57pm.

A large tank contains 400-kg mixture of water and alcohol. The mixture is 64% alcohol by weight. At each step, 100 kg of the mixture will be drained from the tank, replaced with 100 kg of water and then stirred. After three steps, what percent of the final solution will be alchohol?

thanks
~zach

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