Answer & Explanation:
Back when most of our grandparents were attending college, the number of graduates in 1940 numbered only 186,500. For the population at the time, this meant that less than 5 percent of adults 25 and older in the U.S. had a college degree. Of that total, 109,546 of them were men. As an additional reference point, if one of these graduates attended Yale University, it would have cost them $450 per year. Adjusted for the rate of inflation, that $450 in 1940 is worth about $7,200 in the dollars of 2013.