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One car left a city at 2:00 PM and traveled at an average speed of 40 miles per hour. A second car left at 5:00 PM, traveled the same route and overtook the first car at 8:30 PM. What was the average speed in miles per hour of the second car?

 Jan 13, 2024
 #1
avatar+36926 
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The first car travels :       rate * time = distance 

                               40 mi/hr * ( 6.5 hr)  = 260 miles 

the second car also travels this distance, but does it in   3.5 hours   ( 5 to 8:30) 

                           260 miles / 3.5 hr = 74.29 mi/hr     ( 74 2/7 mi/hr) 

 Jan 13, 2024

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