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Math Help - urgent

  1. #1
    Junior Member
    Joined
    Feb 2006
    Posts
    27

    urgent

    Rashmi leaves office at 6.00Pm and catches a 6.30 pm local train that arrives in her town at 7.00 pm . Her father leaves home to pick up her at 7.00pm from the station as she gets off the train. Yesterday , Rashmi left her office early and took a 6.00 pm train and arrived at 6.30 pm .As her father was not there to pick her up,she started walking towards home. Her father left home at the usual time , saw her daughter walking, picked her up and drove home arriving there 10 mins earlier than usual. For how ling did rashmi walk before her father picked her up?
    A]10min b]15 min c]20 min d]25 min
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  2. #2
    Newbie
    Joined
    Jan 2013
    From
    United States
    Posts
    10

    Re: urgent

    Because the trip is two ways, for each minute the car saves on the way there, it saves on the way back. This means it picks Rashmi up five minutes before 7:00, which would be 6:55, so the answer is D.
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