Question 208555
 two trains are 225 miles apart and traving in opposite direction on parallel and adjacent tracks if the eastbound train averages 50 miles per hour and the westbound train averages 40 miles per hour how long will it take before they pass each other
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Assuming they're approaching:
they approach at the sum of their speeds, = 40+50 = 90 mph
225 miles/90 mph = 2.5 hours