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:

https://learning.blogs.nytimes.com/2011/11/14/test-yourself-math-nov-14-2011/

This problem is based on the rising number of Chinese-born students enrolling in U.S. undergraduate programs.