Mathematics, 22.02.2020 10:15 Jonny13Diaz
A car travelled 216km at an average speed of 48km/h. On the return journey the average speed increased to 72km/h. Calculate the average speed, in km/h for the whole journey
Answers: 1
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A car travelled 216km at an average speed of 48km/h. On the return journey the average speed increas...
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