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/2012/04/16/test-yourself-math-april-16-2012/
This question is based on the current oil-export capacity of Iran. How long would it take Iran to export a billion dollars’ worth of oil?