An 18 Year Old Runner Can Complete A 10 0 Km Course With An Average Speed Of 4 3

An 18-year-old runner can complete a 10.0-km course with an average speed of 4.37 m/s. A 50-year-old runner can cover the same distance with an average speed of 4.19 m/s. How much later (in seconds) should the younger runner start in order to finish the course at the same time as the older runner

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