Math Quiz: NYT Learning Network

Through Math for America, I am part of an on-going collaboration with the New York Times Learning Network.  My latest contribution, a Test Yourself quiz-question, can be found here:

http://learning.blogs.nytimes.com/2011/03/02/test-yourself-march-2-2011/

This problem is based on the re-opening of long-closed gold mines due to the rising price of gold.  Apparently, it’s now financially worthwhile to go back in and collect the scraps that were left behind.