Mathematics, 19.12.2020 19:00 molly5318
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?
Answers: 2
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A car completes a journey at an average speed of 40 km/h. At what
speed must it travel on the retur...
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