46. Carmen drove from Blairtown to Ore City, a distance of 80 miles. From Ore City she drove on to Janesville, and then drove back to Blairtown. The ratio of Carmen’s driving times on the first, second, and third segments of the trip, respectively, was 5:2:4, and she drove at the same average speed on each segment. What was Carmen’s total driving distance, in miles, for the 3 segments of the trip?