How well do you know Elon Musk? Take our quiz!

1. Long before being CEO of SpaceX and Tesla Motors, Elon Musk showed a penchant for programming. He took a test from IBM that showed he had one of the highest possible aptitudes for computer programming. How old was he when he took the test?

Lucy Nicholson/Reuters/File
Tesla Motors Inc CEO Elon Musk talks about Tesla's new battery swapping program in Hawthorne, Calif., June 20, 2013.





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