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11 December, 02:22

A European car manufacturer reports that the fuel efficiency of the new MicroCar is 48.5 km/L highway and 42.0 km/L city. What are the equivalent fuel efficiency rates in miles per gallon?

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  1. 11 December, 02:42
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    Fuel efficiency for highway = 114.08 miles/gallon

    Fuel efficiency for city = 98.79 miles/gallon

    Explanation:

    1 gallon = 3.7854 litres

    1 mile = 1.6093 km

    Let's first convert the efficiency to km/gallon:

    48.5 km/litre = (48.5 * 3.7854) km/gallon

    48.5 km/litre = 183.5919 km/gallon (highway)

    42.0 km/litre = (42.0 * 3.7854) km/gallon

    42.0 km/litre = 158.9868 km/gallon (city)

    Next, we convert these to miles/gallon:

    183.5919 km/gallon = (183.5919 / 1.6093) miles/gallon

    183.5919 km/gallon = 114.08 miles/gallon (highway)

    158.9868 km/gallon = (158.9868 / 1.6093) miles/gallon

    158.9868 km/gallon = 98.79 miles/gallon (city)
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