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In a 5.00km race, one runner runs at a steady 11.6km/h and another runs at 15.0km/h. How long does the faster runner have to wait at the finish line to see the slower runner cross?

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  1. 15t = 5
    t = 0.333h = 20 min.

    11.6t = 5
    t = 0.431h = 26 min.

    T = 26 - 20 = 6 min. waiting time.

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