Machines x and y work at their respective constant rates. how many more hours does it take machine y, working alone, to fill a production order of a certain size than it takes machine x, working alone?
1. machine x and y, working together, fill a production order of this size in two thirds the time that machine x does.2. machine y, working alone, fills a production order of this size in twice the time that machine x, working alone, does.