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Mathematics, 24.11.2019 00:31 Anderson0300
Marathon runner covered the whole distance in 4 hours running at a constant speed of 8.1 km per hour. how long would it take him to cover the same distance if he decreased the speed to 7.2 km per hour?
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Marathon runner covered the whole distance in 4 hours running at a constant speed of 8.1 km per hour...
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