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Thread: Distance.....

  1. #1
    Contributing Member
    Join Date
    Sep 2006
    Answers
    962

    Distance.....

    A van travelled from down X to Y. His speed at DownHill 72mph and UpHill 56 mph and Level 63mph. It takes 4 hours to travel form X to Y and takes 4 hours and 40 minutes to travel from Y to X. Find the distance between X and Y ?

    -------------------
    suresh


  2. #2
    Expert Member
    Join Date
    Jan 2007
    Answers
    249

    Re: Distance.....

    Speed = distance/time

    time = distance / speed

    by using this formula i got the answer as 273 miles.

    Thanks
    Manoj


  3. #3
    Contributing Member
    Join Date
    Sep 2006
    Answers
    962

    Re: Distance.....

    Yes you are correct...but if you give a brief explanation about your answer then it would be helpful to others..plz leave your solution here...

    ----------------
    suresh


  4. #4
    Expert Member
    Join Date
    Jan 2007
    Answers
    249

    Re: Distance.....

    a/72+b/56+c/63=4 (equation in hours)
    a/63+b/56+c/72=4hours 40minutes=(4*3+2)/3=14/3

    adding these two equation will get a+b+c=273 miles

    Thanks
    Manoj


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