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? asked in Science & MathematicsMathematics · 1 decade ago

Math Problemmmm Help?

A slow train leaves Canberra at 9:17 AM and arrives in Goulburn at 12:02 PM On the same day, the express train leaves Canberra at 9:56 AM and arrives in Goulburn at 11:36 AM. At what time does the express pass the slow train if each is travelling at a constant speed?

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  • M3
    Lv 7
    1 decade ago
    Favorite Answer

    slow train takes 165 mins

    express train takes 100 mins

    so we can say that the rates of slow & express trains are 20 & 33 units/min resply.

    let t = mins after start of express

    slow train starts 39 mins earlier, so

    20(39+t) = 33t

    13t = 20*39

    t = 60

    ans: 10:56 am

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