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A train left for Houston, and 5 hours later, a car traveling 74 mph tried catching up to the train. After8 hours, the car caught up. What was the train's average speed?

 Mar 2, 2021
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train speed = x

car = 74

train head start =  5 x

closing speed =   car - train =   74 - x

closing speed  for 8 hours covers the head start distance       5x   =  (74-x) 8     solve for x = 45.53 m/hr

 Mar 2, 2021

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