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March 29, 2017

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two runners jog around an oval path at constant rates, but in opposite direstions. one runner completes a lap every 10 minutes, and the other does a lap every 12 minutes. how many minutes elapse between consecutive meetings of the runners? express answer as a mixed number.

  • algebra - ,

    The time they meet must be a multiple of 10 AND of 12.
    So what is the LCM for 10 and 12 ?

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