Your model locomotive is 16 inches long. It is an exact model of a locomotive that is 40 feet long. A window on the locomotive is how many times wider than a window on the model?
Here you have to use proportionality, 1 feet is 12 inches so 40 feets is 480 inches Then the real locomotive is 480/16=30 times wider then the model And then a window on the real locomotive is 30 times wider then the model..
