Question 458450
1/4th of the cars were luxury, 360 total luxury cars were purchased last year, assuming that the ratio of luxury cars and regular cars sold were the same, then simply multiply 360 by 4 to achieve your "whole" fraction of cars

360 x 4 = 1440


or look at it this way, if 1/5 of the cars were luxury, and they sold 5 in the entire year, the total number of cars sold would be 25      make sense?