Charles Koch was born in Wichita, the US, in November 1935. He is a multibillionaire businessman from the United States. On the Bloomberg Billionaires Index, Koch was listed as the world's 21st richest person in January 2022, with a net worth of $61.1 billion. His late brother David Koch served as executive vice president of Koch Industries while serving as co-owner, chairman, and CEO of Koch Industries. Each Charles and David held 42 percent of the company. The Koch brothers took over their father's business, Fred C. Koch, and expanded it. Here's a quiz based on Charles Koch.