geometry challenge 10 grade

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nancyyen47 Newbie | Next Rank: 10 Posts Default Avatar
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geometry challenge 10 grade

Post Sat Sep 18, 2010 8:02 am
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  • Lap #[LAPCOUNT] ([LAPTIME])
    Challenge: Four cities lie along a straight highway in this order cityA,cityB,cityC,CityD the distance from city A to city B is 5 times the distance from city B to city C. the distance from cityA to City D is 2 times the distance from city A to city C, copy and complete the mileage chart

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    Post Sat Sep 18, 2010 9:28 am
    nancyyen47 wrote:
    Challenge: Four cities lie along a straight highway in this order cityA,cityB,cityC,CityD the distance from city A to city B is 5 times the distance from city B to city C. the distance from cityA to City D is 2 times the distance from city A to city C, copy and complete the mileage chart
    tobe honest, i dont understand this mathematic question

    gmat1011 Master | Next Rank: 500 Posts Default Avatar
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    Post Sun Sep 19, 2010 2:58 am
    what exactly do you mean by "copy and complete the mileage chart"?

    based on the info given it can be derived that C is midway between A and D... but the distances can be any values...

    This is not a GMAT type question.

    brijesh Senior | Next Rank: 100 Posts Default Avatar
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    Post Sun Sep 19, 2010 7:08 am
    nancyyen47 wrote:
    Challenge: Four cities lie along a straight highway in this order cityA,cityB,cityC,CityD the distance from city A to city B is 5 times the distance from city B to city C. the distance from cityA to City D is 2 times the distance from city A to city C, copy and complete the mileage chart
    AB= 5x
    BC=x
    CD=6x
    AD=12x

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