document.write( "Question 1145488: A train leaves a station and travels north at 75km/h. Two hours later, a second train leaves on a parallel track traveling north at 125km/h. How far from the station will the second train overtake the first train?\r
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\n" ); document.write( "A train leaves a station and travels north at 75km/h. Two hours later, a second train leaves on a parallel track traveling north at 125km/h. How far from the station will the second train overtake the first train?
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Let distance be D
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document.write( "When the 2nd train pulls up alongside the 1st train, and their \"noses\" are perpendicular to each other, both trains will have traveled the same distance  
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document.write( "Therefore, we get the following TIME equation: 
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document.write( "5D = 3D + 2(375) -------- Multiplying by LCD, 375
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document.write( "5D - 3D = 2(375)
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document.write( "2D = 2(375)
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document.write( "D, or  \n" );
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