Question 433159
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Hi
Let t represent the time it takes for trains to be 378mi apart
Question states*** Trains traveling in opposite directions.  D = r*t
  95t + 115t = 378
      210t = 378mi
        t = 378/210 = 1.8hr,time it takes for trains to be 378mi apart
 
 CHECKING our Answer***
 95mp*1.8hr + 115mph*1.8hr  = 378mi