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23 November, 10:19

usain bolt can run 100 m in 9.77s. if he ran this fast at a constant speed, how long will it take him to run a mile

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  1. 23 November, 10:40
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    Answer = 157.2 seconds

    If 1 mile = 1609.34 metres

    Speed he travelled at ... in the 100 metres

    100:9.77 = 10.24 metres/second

    Then time taken for 1 mile;

    Distance/Speed travelled at.

    Time taken = 1609.34 : 10.24

    Time = 157.2 seconds
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