Mathematics, 16.11.2020 19:00, josephinekiim

Take the horse to overtake the 17. A car completes a journey at an average speed of 40 km/h. At what
speed must it travel on the return journey if the average speed for the
complete journey (out and back) is 60 km/h?
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Answers: 3

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Take the horse to overtake the 17. A car completes a journey at an average speed of 40 km/h. At wha...