Suppose that the gasoline in a car engine burns at 631°C, while the exhaust temperature (the temperature of the cold reservoir) is 139°C and the outdoor temperature is 27°C. Assume that the engine can be treated as a Carnot engine (a gross oversimplification). In an attempt to increase mileage performance, an inventor builds a second engine that functions between the exhaust and outdoor temperatures and uses the exhaust heat to produce additional work. Assume that the inventor’s engine can also be treated as a Carnot engine. Determine the ratio of the total work produced by both engines to that produced by the first engine alone.