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28 October, 20:37

1. A car takes 1 hour 40 minutes to travel 117 km. What is the average speed of the car I'm I'm per hour?

2. How many minutes will it take the car to travel 19 1/5 km?

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  1. 28 October, 20:42
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    1 hr 40 mins = 5/3 hours

    average speed = 117 / 5/3 = 117*3 / 5 = 70.2 kph.

    2. speed = distance / time

    70.2 = 19.2 / time

    time = 19.2 / 70.2 = 0.2735 hours = 16.5 minutes answer
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