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Math Help - Word problem #3

  1. #1
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    Word problem #3

    The speed of a passenger train is 12 mph more than the speed of a freight train. The passenger train travels 290 miles in the same time it takes the freight train to travel 230 miles. Find the speed of each train.
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  2. #2
    Senior Member yeKciM's Avatar
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    Quote Originally Posted by junebug017 View Post
    The speed of a passenger train is 12 mph more than the speed of a freight train. The passenger train travels 290 miles in the same time it takes the freight train to travel 230 miles. Find the speed of each train.
    let's say v_1 is speed of freight train, v_2 is speed of the passenger train v_2= 12+v_1 , time is "t" for the both trains is the same and you have distance of freight train s_1= 230 and distance of the passenger train s_2= 290



    \displaystyle  v_2 = \frac {290}{t}
    \displaystyle  v_1=v_2 +12  = \frac {230}{t}

    does this help you ?

    show what have you done
    Last edited by yeKciM; October 9th 2010 at 03:16 PM.
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