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A train leaves a station and travels north at a speed of 45 mph. Two hours later, a second train leaves on a parallel track and travels north at 75 mph. How far from the station will they meet?

 Jan 27, 2020
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First train get s a head start  

rate  x  time = distance

45    x   2     = 90 mile head start

 

Second train is travelling 30 m/hr faster and will close this 90 mile difference in   90 m/30m/hr = 3 hours

 

The second train will have travelled 3 hours at 75 m/r  = 225 miles when they meet

 Jan 27, 2020

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