The youngest female billionaire in the U.S. -- and one of the youngest on Earth -- owes her $1.1 billion fortune to flipping burgers, according to the Bloomberg Billionaires Index.
Lynsi Torres, 30, is owner and president of the In-N-Out Burger chain, whose restaurants have earned a following so devoted, says Bloomberg, that customers line up hours in advance of a new store's opening.
The chain's fans include fellow billionaire Warren Buffett, who, according to a story on the UCLA Anderson...
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